142550005 has 8 divisors (see below), whose sum is σ = 184218552. Its totient is φ = 105267648.

The previous prime is 142550003. The next prime is 142550039. The reversal of 142550005 is 500055241.

It can be written as a sum of positive squares in 4 ways, for example, as 14814801 + 127735204 = 3849^2 + 11302^2 .

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 142550005 - 2¹ = 142550003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142550003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096474 + ... + 1096603.

It is an arithmetic number, because the mean of its divisors is an integer number (23027319).

Almost surely, 2^142550005 is an apocalyptic number.

It is an amenable number.

142550005 is a deficient number, since it is larger than the sum of its proper divisors (41668547).

142550005 is a wasteful number, since it uses less digits than its factorization.

142550005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193095.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 142550005 is about 11939.4306815694. The cubic root of 142550005 is about 522.3830526632.

The spelling of 142550005 in words is "one hundred forty-two million, five hundred fifty thousand, five".