156405916 has 12 divisors (see below), whose sum is σ = 289811088. Its totient is φ = 73602752.

The previous prime is 156405883. The next prime is 156405917. The reversal of 156405916 is 619504651.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156405917) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1149976 + ... + 1150111.

It is an arithmetic number, because the mean of its divisors is an integer number (24150924).

Almost surely, 2^156405916 is an apocalyptic number.

It is an amenable number.

156405916 is a deficient number, since it is larger than the sum of its proper divisors (133405172).

156405916 is a wasteful number, since it uses less digits than its factorization.

156405916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300108 (or 2300106 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 156405916 is about 12506.2350849486. The cubic root of 156405916 is about 538.7877653987.

The spelling of 156405916 in words is "one hundred fifty-six million, four hundred five thousand, nine hundred sixteen".