156601940 has 48 divisors (see below), whose sum is σ = 374371200. Its totient is φ = 54468480.

The previous prime is 156601901. The next prime is 156601967. The reversal of 156601940 is 49106651.

156601940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×156601940² = 49048335223527200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156601897 and 156601906.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 10415 + ... + 20534.

It is an arithmetic number, because the mean of its divisors is an integer number (7799400).

Almost surely, 2^156601940 is an apocalyptic number.

156601940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156601940 is an abundant number, since it is smaller than the sum of its proper divisors (217769260).

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

156601940 is a wasteful number, since it uses less digits than its factorization.

156601940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30992 (or 30990 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 156601940 is about 12514.0696817622. The cubic root of 156601940 is about 539.0127595329.

The spelling of 156601940 in words is "one hundred fifty-six million, six hundred one thousand, nine hundred forty".