172480615 has 4 divisors (see below), whose sum is σ = 206976744. Its totient is φ = 137984488.

The previous prime is 172480591. The next prime is 172480631. The reversal of 172480615 is 516084271.

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 172480615 - 2¹⁷ = 172349543 is a prime.

It is a Duffinian number.

It is a congruent 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, 17248057 + ... + 17248066.

It is an arithmetic number, because the mean of its divisors is an integer number (51744186).

Almost surely, 2^172480615 is an apocalyptic number.

172480615 is a deficient number, since it is larger than the sum of its proper divisors (34496129).

172480615 is an equidigital number, since it uses as much as digits as its factorization.

172480615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34496128.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 172480615 is about 13133.1875414920. The cubic root of 172480615 is about 556.6472877824.

The spelling of 172480615 in words is "one hundred seventy-two million, four hundred eighty thousand, six hundred fifteen".