163085515 has 4 divisors (see below), whose sum is σ = 195702624. Its totient is φ = 130468408.

The previous prime is 163085459. The next prime is 163085563. The reversal of 163085515 is 515580361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 515580361 = 7963 ⋅64747.

It is a cyclic number.

It is not a de Polignac number, because 163085515 - 2²³ = 154696907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16308547 + ... + 16308556.

It is an arithmetic number, because the mean of its divisors is an integer number (48925656).

Almost surely, 2^163085515 is an apocalyptic number.

163085515 is a deficient number, since it is larger than the sum of its proper divisors (32617109).

163085515 is an equidigital number, since it uses as much as digits as its factorization.

163085515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32617108.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 163085515 is about 12770.4939215365. The cubic root of 163085515 is about 546.3510681247.

The spelling of 163085515 in words is "one hundred sixty-three million, eighty-five thousand, five hundred fifteen".