156401144 has 16 divisors (see below), whose sum is σ = 293787000. Its totient is φ = 78057952.

The previous prime is 156401137. The next prime is 156401149. The reversal of 156401144 is 441104651.

It is a super-2 number, since 2×156401144² = 48922635689017472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156401149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13094 + ... + 22005.

Almost surely, 2^156401144 is an apocalyptic number.

It is an amenable number.

156401144 is a deficient number, since it is larger than the sum of its proper divisors (137385856).

156401144 is a wasteful number, since it uses less digits than its factorization.

156401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35662 (or 35658 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 156401144 is about 12506.0442986581. The cubic root of 156401144 is about 538.7822858077.

Adding to 156401144 its reverse (441104651), we get a palindrome (597505795).

The spelling of 156401144 in words is "one hundred fifty-six million, four hundred one thousand, one hundred forty-four".