163091315 has 4 divisors (see below), whose sum is σ = 195709584. Its totient is φ = 130473048.

The previous prime is 163091311. The next prime is 163091329. The reversal of 163091315 is 513190361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163091315 - 2² = 163091311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163091311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16309127 + ... + 16309136.

It is an arithmetic number, because the mean of its divisors is an integer number (48927396).

Almost surely, 2^163091315 is an apocalyptic number.

163091315 is a deficient number, since it is larger than the sum of its proper divisors (32618269).

163091315 is an equidigital number, since it uses as much as digits as its factorization.

163091315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32618268.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 163091315 is about 12770.7210054875. The cubic root of 163091315 is about 546.3575448875.

The spelling of 163091315 in words is "one hundred sixty-three million, ninety-one thousand, three hundred fifteen".