156540672 has 54 divisors (see below), whose sum is σ = 451351992. Its totient is φ = 52179456.

The previous prime is 156540661. The next prime is 156540719. The reversal of 156540672 is 276045651.

It is a happy number.

156540672 is a `hidden beast` number, since 1 + 56 + 540 + 67 + 2 = 666.

It is a super-3 number, since 3×156540672³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 31668 + ... + 36275.

Almost surely, 2^156540672 is an apocalyptic number.

156540672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

156540672 is an abundant number, since it is smaller than the sum of its proper divisors (294811320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

156540672 is an equidigital number, since it uses as much as digits as its factorization.

156540672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67965 (or 67948 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 156540672 is about 12511.6214776503. The cubic root of 156540672 is about 538.9424569951.

The spelling of 156540672 in words is "one hundred fifty-six million, five hundred forty thousand, six hundred seventy-two".