156492945 has 32 divisors (see below), whose sum is σ = 317955840. Its totient is φ = 71539200.

The previous prime is 156492937. The next prime is 156492971. The reversal of 156492945 is 549294651.

156492945 is a `hidden beast` number, since 156 + 492 + 9 + 4 + 5 = 666.

It is not a de Polignac number, because 156492945 - 2³ = 156492937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 156492945.

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 31 ways as a sum of consecutive naturals, for example, 81856 + ... + 83745.

It is an arithmetic number, because the mean of its divisors is an integer number (9936120).

Almost surely, 2^156492945 is an apocalyptic number.

156492945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

156492945 is an abundant number, since it is smaller than the sum of its proper divisors (161462895).

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

156492945 is a wasteful number, since it uses less digits than its factorization.

156492945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165622 (or 165616 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 156492945 is about 12509.7140255083. The cubic root of 156492945 is about 538.8876794925.

The spelling of 156492945 in words is "one hundred fifty-six million, four hundred ninety-two thousand, nine hundred forty-five".