172960215 has 16 divisors (see below), whose sum is σ = 279591648. Its totient is φ = 91293696.

The previous prime is 172960201. The next prime is 172960223. The reversal of 172960215 is 512069271.

It is not a de Polignac number, because 172960215 - 2⁴ = 172960199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57982 + ... + 60891.

It is an arithmetic number, because the mean of its divisors is an integer number (17474478).

Almost surely, 2^172960215 is an apocalyptic number.

172960215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

172960215 is a deficient number, since it is larger than the sum of its proper divisors (106631433).

172960215 is a wasteful number, since it uses less digits than its factorization.

172960215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118978.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 172960215 is about 13151.4339522350. The cubic root of 172960215 is about 557.1627485619.

The spelling of 172960215 in words is "one hundred seventy-two million, nine hundred sixty thousand, two hundred fifteen".