156361401 has 48 divisors (see below), whose sum is σ = 273326400. Its totient is φ = 88070976.

The previous prime is 156361399. The next prime is 156361411. The reversal of 156361401 is 104163651.

156361401 is a `hidden beast` number, since 1 + 563 + 61 + 40 + 1 = 666.

156361401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 156361401 - 2¹ = 156361399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (156361411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95770 + ... + 97388.

It is an arithmetic number, because the mean of its divisors is an integer number (5694300).

Almost surely, 2^156361401 is an apocalyptic number.

It is an amenable number.

156361401 is a deficient number, since it is larger than the sum of its proper divisors (116964999).

156361401 is a wasteful number, since it uses less digits than its factorization.

156361401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 156361401 is about 12504.4552460313. The cubic root of 156361401 is about 538.7366453947.

The spelling of 156361401 in words is "one hundred fifty-six million, three hundred sixty-one thousand, four hundred one".