172448961 has 16 divisors (see below), whose sum is σ = 232862784. Its totient is φ = 113508864.

The previous prime is 172448929. The next prime is 172448977. The reversal of 172448961 is 169844271.

It is not a de Polignac number, because 172448961 - 2⁵ = 172448929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172441961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103245 + ... + 104901.

It is an arithmetic number, because the mean of its divisors is an integer number (14553924).

Almost surely, 2^172448961 is an apocalyptic number.

It is an amenable number.

172448961 is a deficient number, since it is larger than the sum of its proper divisors (60413823).

172448961 is a wasteful number, since it uses less digits than its factorization.

172448961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080.

The product of its digits is 96768, while the sum is 42.

The square root of 172448961 is about 13131.9823712949. The cubic root of 172448961 is about 556.6132333444.

The spelling of 172448961 in words is "one hundred seventy-two million, four hundred forty-eight thousand, nine hundred sixty-one".