172498131 has 72 divisors (see below), whose sum is σ = 292331520. Its totient is φ = 97651008.

The previous prime is 172498097. The next prime is 172498163. The reversal of 172498131 is 131894271.

It is a happy number.

It is not a de Polignac number, because 172498131 - 2¹¹ = 172496083 is a prime.

It is a super-2 number, since 2×172498131² = 59511210396986322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172498531) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1358190 + ... + 1358316.

It is an arithmetic number, because the mean of its divisors is an integer number (4060160).

Almost surely, 2^172498131 is an apocalyptic number.

172498131 is a deficient number, since it is larger than the sum of its proper divisors (119833389).

172498131 is a wasteful number, since it uses less digits than its factorization.

172498131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 209 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 172498131 is about 13133.8543847570. The cubic root of 172498131 is about 556.6661302938. Note that the first 3 decimals are identical.

The spelling of 172498131 in words is "one hundred seventy-two million, four hundred ninety-eight thousand, one hundred thirty-one".