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142127 = 311457
BaseRepresentation
bin100010101100101111
321012221222
4202230233
514022002
63013555
71131236
oct425457
9235858
10142127
1197867
126a2bb
134c8cb
1439b1d
152c1a2
hex22b2f

142127 has 4 divisors (see below), whose sum is σ = 142896. Its totient is φ = 141360.

The previous prime is 142123. The next prime is 142151. The reversal of 142127 is 721241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 142127 - 22 = 142123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142127.

It is not an unprimeable number, because it can be changed into a prime (142123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (35724).

2142127 is an apocalyptic number.

142127 is a deficient number, since it is larger than the sum of its proper divisors (769).

142127 is an equidigital number, since it uses as much as digits as its factorization.

142127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768.

The product of its digits is 112, while the sum is 17.

The square root of 142127 is about 376.9973474708. The cubic root of 142127 is about 52.1865831648.

Adding to 142127 its reverse (721241), we get a palindrome (863368).

The spelling of 142127 in words is "one hundred forty-two thousand, one hundred twenty-seven", and thus it is an iban number.

Divisors: 1 311 457 142127