172490133 has 16 divisors (see below), whose sum is σ = 241038720. Its totient is φ = 109511424.

The previous prime is 172490119. The next prime is 172490137. The reversal of 172490133 is 331094271.

It is not a de Polignac number, because 172490133 - 2⁴ = 172490117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172490133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172490137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10713 + ... + 21441.

It is an arithmetic number, because the mean of its divisors is an integer number (15064920).

Almost surely, 2^172490133 is an apocalyptic number.

It is an amenable number.

172490133 is a deficient number, since it is larger than the sum of its proper divisors (68548587).

172490133 is a wasteful number, since it uses less digits than its factorization.

172490133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10988.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 172490133 is about 13133.5499009217. The cubic root of 172490133 is about 556.6575267522.

The spelling of 172490133 in words is "one hundred seventy-two million, four hundred ninety thousand, one hundred thirty-three".