163215272 has 32 divisors (see below), whose sum is σ = 341621280. Its totient is φ = 72461760.

The previous prime is 163215259. The next prime is 163215281. The reversal of 163215272 is 272512361.

It is a happy number.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17783 + ... + 25350.

It is an arithmetic number, because the mean of its divisors is an integer number (10675665).

Almost surely, 2^163215272 is an apocalyptic number.

It is an amenable number.

163215272 is an abundant number, since it is smaller than the sum of its proper divisors (178406008).

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

163215272 is a wasteful number, since it uses less digits than its factorization.

163215272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43193 (or 43189 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 163215272 is about 12775.5732552399. The cubic root of 163215272 is about 546.4959288994.

The spelling of 163215272 in words is "one hundred sixty-three million, two hundred fifteen thousand, two hundred seventy-two".