156870465 has 32 divisors (see below), whose sum is σ = 263208960. Its totient is φ = 79628736.

The previous prime is 156870457. The next prime is 156870529. The reversal of 156870465 is 564078651.

It is not a de Polignac number, because 156870465 - 2³ = 156870457 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 75916 + ... + 77954.

It is an arithmetic number, because the mean of its divisors is an integer number (8225280).

Almost surely, 2^156870465 is an apocalyptic number.

156870465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156870465 is a deficient number, since it is larger than the sum of its proper divisors (106338495).

156870465 is a wasteful number, since it uses less digits than its factorization.

156870465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 156870465 is about 12524.7940102822. The cubic root of 156870465 is about 539.3206649403.

The spelling of 156870465 in words is "one hundred fifty-six million, eight hundred seventy thousand, four hundred sixty-five".