172272712 has 8 divisors (see below), whose sum is σ = 323011350. Its totient is φ = 86136352.

The previous prime is 172272707. The next prime is 172272739. The reversal of 172272712 is 217272271.

It can be written as a sum of positive squares in only one way, i.e., 88623396 + 83649316 = 9414^2 + 9146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10767037 + ... + 10767052.

Almost surely, 2^172272712 is an apocalyptic number.

It is an amenable number.

172272712 is a deficient number, since it is larger than the sum of its proper divisors (150738638).

172272712 is a wasteful number, since it uses less digits than its factorization.

172272712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21534095 (or 21534091 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 172272712 is about 13125.2699781757. The cubic root of 172272712 is about 556.4235425017.

The spelling of 172272712 in words is "one hundred seventy-two million, two hundred seventy-two thousand, seven hundred twelve".