156870436 has 12 divisors (see below), whose sum is σ = 274702428. Its totient is φ = 78384032.

The previous prime is 156870433. The next prime is 156870449. The reversal of 156870436 is 634078651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57668836 + 99201600 = 7594^2 + 9960^2 .

It is not an unprimeable number, because it can be changed into a prime (156870431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5431 + ... + 18526.

It is an arithmetic number, because the mean of its divisors is an integer number (22891869).

Almost surely, 2^156870436 is an apocalyptic number.

It is an amenable number.

156870436 is a deficient number, since it is larger than the sum of its proper divisors (117831992).

156870436 is a wasteful number, since it uses less digits than its factorization.

156870436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25598 (or 25596 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 156870436 is about 12524.7928525784. The cubic root of 156870436 is about 539.3206317063.

The spelling of 156870436 in words is "one hundred fifty-six million, eight hundred seventy thousand, four hundred thirty-six".