172373361 has 16 divisors (see below), whose sum is σ = 245429760. Its totient is φ = 107372160.

The previous prime is 172373351. The next prime is 172373381. The reversal of 172373361 is 163373271.

It is a happy number.

It is not a de Polignac number, because 172373361 - 2⁵ = 172373329 is a prime.

It is a super-3 number, since 3×172373361³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (172373351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29260 + ... + 34653.

It is an arithmetic number, because the mean of its divisors is an integer number (15339360).

Almost surely, 2^172373361 is an apocalyptic number.

It is an amenable number.

172373361 is a deficient number, since it is larger than the sum of its proper divisors (73056399).

172373361 is a wasteful number, since it uses less digits than its factorization.

172373361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63976.

The product of its digits is 15876, while the sum is 33.

The square root of 172373361 is about 13129.1035870695. The cubic root of 172373361 is about 556.5318834562.

The spelling of 172373361 in words is "one hundred seventy-two million, three hundred seventy-three thousand, three hundred sixty-one".