172033137 has 6 divisors (see below), whose sum is σ = 248492322. Its totient is φ = 114688752.

The previous prime is 172033129. The next prime is 172033139. The reversal of 172033137 is 731330271.

It can be written as a sum of positive squares in only one way, i.e., 107246736 + 64786401 = 10356^2 + 8049^2 .

It is not a de Polignac number, because 172033137 - 2³ = 172033129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172033137.

It is not an unprimeable number, because it can be changed into a prime (172033139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9557388 + ... + 9557405.

It is an arithmetic number, because the mean of its divisors is an integer number (41415387).

Almost surely, 2^172033137 is an apocalyptic number.

It is an amenable number.

172033137 is a deficient number, since it is larger than the sum of its proper divisors (76459185).

172033137 is a wasteful number, since it uses less digits than its factorization.

172033137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19114799 (or 19114796 counting only the distinct ones).

The product of its (nonzero) digits is 2646, while the sum is 27.

The square root of 172033137 is about 13116.1403240435. The cubic root of 172033137 is about 556.1654884527.

The spelling of 172033137 in words is "one hundred seventy-two million, thirty-three thousand, one hundred thirty-seven".