156242255 has 16 divisors (see below), whose sum is σ = 203377440. Its totient is φ = 114542208.

The previous prime is 156242249. The next prime is 156242297. The reversal of 156242255 is 552242651.

It is a cyclic number.

It is not a de Polignac number, because 156242255 - 2⁸ = 156241999 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (12711090).

Almost surely, 2^156242255 is an apocalyptic number.

156242255 is a deficient number, since it is larger than the sum of its proper divisors (47135185).

156242255 is a wasteful number, since it uses less digits than its factorization.

156242255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17450.

The product of its digits is 24000, while the sum is 32.

The square root of 156242255 is about 12499.6901961609. The cubic root of 156242255 is about 538.5997731094.

The spelling of 156242255 in words is "one hundred fifty-six million, two hundred forty-two thousand, two hundred fifty-five".