156448971 has 24 divisors (see below), whose sum is σ = 266599424. Its totient is φ = 86514480.

The previous prime is 156448961. The next prime is 156448991. The reversal of 156448971 is 179844651.

156448971 is a `hidden beast` number, since 1 + 564 + 4 + 89 + 7 + 1 = 666.

156448971 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 156448971 - 2⁷ = 156448843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156448961) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38101 + ... + 42006.

Almost surely, 2^156448971 is an apocalyptic number.

156448971 is a deficient number, since it is larger than the sum of its proper divisors (110150453).

156448971 is a wasteful number, since it uses less digits than its factorization.

156448971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80151 (or 80148 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 156448971 is about 12507.9563078866. The cubic root of 156448971 is about 538.8371995454.

The spelling of 156448971 in words is "one hundred fifty-six million, four hundred forty-eight thousand, nine hundred seventy-one".