156870135 has 64 divisors (see below), whose sum is σ = 305596800. Its totient is φ = 75995136.

The previous prime is 156870127. The next prime is 156870139. The reversal of 156870135 is 531078651.

It is not a de Polignac number, because 156870135 - 2³ = 156870127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156870135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156870139) 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 63 ways as a sum of consecutive naturals, for example, 65377 + ... + 67733.

It is an arithmetic number, because the mean of its divisors is an integer number (4774950).

Almost surely, 2^156870135 is an apocalyptic number.

156870135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

156870135 is a deficient number, since it is larger than the sum of its proper divisors (148726665).

156870135 is a wasteful number, since it uses less digits than its factorization.

156870135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 156870135 is about 12524.7808364059. The cubic root of 156870135 is about 539.3202867600.

The spelling of 156870135 in words is "one hundred fifty-six million, eight hundred seventy thousand, one hundred thirty-five".