172329412 has 6 divisors (see below), whose sum is σ = 301576478. Its totient is φ = 86164704.

The previous prime is 172329389. The next prime is 172329413. The reversal of 172329412 is 214923271.

It can be written as a sum of positive squares in only one way, i.e., 150651076 + 21678336 = 12274^2 + 4656^2 .

It is not an unprimeable number, because it can be changed into a prime (172329413) 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 as a sum of consecutive naturals, namely, 21541173 + ... + 21541180.

Almost surely, 2^172329412 is an apocalyptic number.

It is an amenable number.

172329412 is a deficient number, since it is larger than the sum of its proper divisors (129247066).

172329412 is a wasteful number, since it uses less digits than its factorization.

172329412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43082357 (or 43082355 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 172329412 is about 13127.4297560490. The cubic root of 172329412 is about 556.4845809058.

The spelling of 172329412 in words is "one hundred seventy-two million, three hundred twenty-nine thousand, four hundred twelve".