172676144 has 20 divisors (see below), whose sum is σ = 336499296. Its totient is φ = 85837632.

The previous prime is 172676143. The next prime is 172676149. The reversal of 172676144 is 441676271.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 172676098 and 172676107.

It is not an unprimeable number, because it can be changed into a prime (172676143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28424 + ... + 33959.

Almost surely, 2^172676144 is an apocalyptic number.

It is an amenable number.

172676144 is a deficient number, since it is larger than the sum of its proper divisors (163823152).

172676144 is a wasteful number, since it uses less digits than its factorization.

172676144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62564 (or 62558 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 172676144 is about 13140.6295130789. The cubic root of 172676144 is about 556.8575521554.

The spelling of 172676144 in words is "one hundred seventy-two million, six hundred seventy-six thousand, one hundred forty-four".