172138592 has 24 divisors (see below), whose sum is σ = 339274656. Its totient is φ = 85973632.

The previous prime is 172138591. The next prime is 172138609. The reversal of 172138592 is 295831271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172138591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32858 + ... + 37734.

It is an arithmetic number, because the mean of its divisors is an integer number (14136444).

Almost surely, 2^172138592 is an apocalyptic number.

It is an amenable number.

172138592 is a deficient number, since it is larger than the sum of its proper divisors (167136064).

172138592 is a wasteful number, since it uses less digits than its factorization.

172138592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5990 (or 5982 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 172138592 is about 13120.1597551249. The cubic root of 172138592 is about 556.2791069733.

The spelling of 172138592 in words is "one hundred seventy-two million, one hundred thirty-eight thousand, five hundred ninety-two".