172151312 has 10 divisors (see below), whose sum is σ = 333543198. Its totient is φ = 86075648.

The previous prime is 172151303. The next prime is 172151347. The reversal of 172151312 is 213151271.

It can be written as a sum of positive squares in only one way, i.e., 114147856 + 58003456 = 10684^2 + 7616^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5379713 + ... + 5379744.

Almost surely, 2^172151312 is an apocalyptic number.

It is an amenable number.

172151312 is a deficient number, since it is larger than the sum of its proper divisors (161391886).

172151312 is a wasteful number, since it uses less digits than its factorization.

172151312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10759465 (or 10759459 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 172151312 is about 13120.6444963653. The cubic root of 172151312 is about 556.2928085221.

The spelling of 172151312 in words is "one hundred seventy-two million, one hundred fifty-one thousand, three hundred twelve".