156135257938 has 32 divisors (see below), whose sum is σ = 260546533632. Its totient is φ = 69580165200.

The previous prime is 156135257923. The next prime is 156135257947. The reversal of 156135257938 is 839752531651.

It is a happy number.

156135257938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87156 + ... + 565567.

It is an arithmetic number, because the mean of its divisors is an integer number (8142079176).

Almost surely, 2^156135257938 is an apocalyptic number.

156135257938 is a deficient number, since it is larger than the sum of its proper divisors (104411275694).

156135257938 is a wasteful number, since it uses less digits than its factorization.

156135257938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652950.

The product of its digits is 6804000, while the sum is 55.

The spelling of 156135257938 in words is "one hundred fifty-six billion, one hundred thirty-five million, two hundred fifty-seven thousand, nine hundred thirty-eight".