163431153 has 12 divisors (see below), whose sum is σ = 244207860. Its totient is φ = 105196896.

The previous prime is 163431133. The next prime is 163431181. The reversal of 163431153 is 351134361.

It can be written as a sum of positive squares in 2 ways, for example, as 65658609 + 97772544 = 8103^2 + 9888^2 .

It is not a de Polignac number, because 163431153 - 2¹² = 163427057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163431113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312826 + ... + 313347.

It is an arithmetic number, because the mean of its divisors is an integer number (20350655).

Almost surely, 2^163431153 is an apocalyptic number.

It is an amenable number.

163431153 is a deficient number, since it is larger than the sum of its proper divisors (80776707).

163431153 is a wasteful number, since it uses less digits than its factorization.

163431153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626208 (or 626205 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 163431153 is about 12784.0194383457. The cubic root of 163431153 is about 546.7367685152.

The spelling of 163431153 in words is "one hundred sixty-three million, four hundred thirty-one thousand, one hundred fifty-three".