172896313 has 4 divisors (see below), whose sum is σ = 180413568. Its totient is φ = 165379060.

The previous prime is 172896299. The next prime is 172896323. The reversal of 172896313 is 313698271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172896313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172896323) 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, 3758593 + ... + 3758638.

It is an arithmetic number, because the mean of its divisors is an integer number (45103392).

Almost surely, 2^172896313 is an apocalyptic number.

It is an amenable number.

172896313 is a deficient number, since it is larger than the sum of its proper divisors (7517255).

172896313 is an equidigital number, since it uses as much as digits as its factorization.

172896313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7517254.

The product of its digits is 54432, while the sum is 40.

The square root of 172896313 is about 13149.0042588783. The cubic root of 172896313 is about 557.0941235324.

The spelling of 172896313 in words is "one hundred seventy-two million, eight hundred ninety-six thousand, three hundred thirteen".