172253389 has 32 divisors (see below), whose sum is σ = 223082496. Its totient is φ = 129107520.

The previous prime is 172253383. The next prime is 172253429. The reversal of 172253389 is 983352271.

It is a cyclic number.

It is not a de Polignac number, because 172253389 - 2³ = 172253381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172253381) 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 31 ways as a sum of consecutive naturals, for example, 293154 + ... + 293740.

It is an arithmetic number, because the mean of its divisors is an integer number (6971328).

Almost surely, 2^172253389 is an apocalyptic number.

It is an amenable number.

172253389 is a deficient number, since it is larger than the sum of its proper divisors (50829107).

172253389 is a wasteful number, since it uses less digits than its factorization.

172253389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its digits is 90720, while the sum is 40.

The square root of 172253389 is about 13124.5338583890. The cubic root of 172253389 is about 556.4027379413.

The spelling of 172253389 in words is "one hundred seventy-two million, two hundred fifty-three thousand, three hundred eighty-nine".