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142122523 = 4115722079
BaseRepresentation
bin10000111100010…
…01111000011011
3100220102120110011
420132021320123
5242340410043
622034102351
73344010244
oct1036117033
9326376404
10142122523
1173251834
123b71a9b7
13235a148a
1414c37ccb
15c72559d
hex8789e1b

142122523 has 8 divisors (see below), whose sum is σ = 146522880. Its totient is φ = 137766720.

The previous prime is 142122517. The next prime is 142122529. The reversal of 142122523 is 325221241.

It is a happy number.

142122523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142122517) and next prime (142122529).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142122523 - 225 = 108568091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142122494 and 142122503.

It is not an unprimeable number, because it can be changed into a prime (142122529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4603 + ... + 17476.

It is an arithmetic number, because the mean of its divisors is an integer number (18315360).

Almost surely, 2142122523 is an apocalyptic number.

142122523 is a deficient number, since it is larger than the sum of its proper divisors (4400357).

142122523 is a wasteful number, since it uses less digits than its factorization.

142122523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22277.

The product of its digits is 960, while the sum is 22.

The square root of 142122523 is about 11921.5151302173. The cubic root of 142122523 is about 521.8603520002.

Adding to 142122523 its reverse (325221241), we get a palindrome (467343764).

The spelling of 142122523 in words is "one hundred forty-two million, one hundred twenty-two thousand, five hundred twenty-three".

Divisors: 1 41 157 6437 22079 905239 3466403 142122523