172244945 has 8 divisors (see below), whose sum is σ = 208063680. Its totient is φ = 136882800.

The previous prime is 172244929. The next prime is 172244951. The reversal of 172244945 is 549442271.

172244945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172244945 - 2⁴ = 172244929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172244899 and 172244908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113315 + ... + 114824.

It is an arithmetic number, because the mean of its divisors is an integer number (26007960).

Almost surely, 2^172244945 is an apocalyptic number.

It is an amenable number.

172244945 is a deficient number, since it is larger than the sum of its proper divisors (35818735).

172244945 is a wasteful number, since it uses less digits than its factorization.

172244945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228295.

The product of its digits is 80640, while the sum is 38.

The square root of 172244945 is about 13124.2121668312. The cubic root of 172244945 is about 556.3936460225.

The spelling of 172244945 in words is "one hundred seventy-two million, two hundred forty-four thousand, nine hundred forty-five".