163231264 has 48 divisors (see below), whose sum is σ = 368928000. Its totient is φ = 69640704.

The previous prime is 163231259. The next prime is 163231273. The reversal of 163231264 is 462132361.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 7 ways as a sum of consecutive naturals, for example, 52012 + ... + 55060.

It is an arithmetic number, because the mean of its divisors is an integer number (7686000).

Almost surely, 2^163231264 is an apocalyptic number.

163231264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163231264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184464000).

163231264 is an abundant number, since it is smaller than the sum of its proper divisors (205696736).

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

163231264 is a wasteful number, since it uses less digits than its factorization.

163231264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305 (or 3297 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

The square root of 163231264 is about 12776.1991218046. The cubic root of 163231264 is about 546.5137770607.

It can be divided in two parts, 1632 and 31264, that added together give a triangular number (32896 = T₂₅₆).

The spelling of 163231264 in words is "one hundred sixty-three million, two hundred thirty-one thousand, two hundred sixty-four".