131875173 has 6 divisors (see below), whose sum is σ = 190486374. Its totient is φ = 87916776.

The previous prime is 131875153. The next prime is 131875193. The reversal of 131875173 is 371578131.

It is a happy number.

131875173 is a `hidden beast` number, since 131 + 8 + 7 + 517 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (131875153) and next prime (131875193).

It can be written as a sum of positive squares in only one way, i.e., 112848129 + 19027044 = 10623^2 + 4362^2 .

It is not a de Polignac number, because 131875173 - 2¹⁸ = 131613029 is a prime.

It is a super-2 number, since 2×131875173² = 34782122507559858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131875153) 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, 7326390 + ... + 7326407.

It is an arithmetic number, because the mean of its divisors is an integer number (31747729).

Almost surely, 2^131875173 is an apocalyptic number.

It is an amenable number.

131875173 is a deficient number, since it is larger than the sum of its proper divisors (58611201).

131875173 is a wasteful number, since it uses less digits than its factorization.

131875173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14652803 (or 14652800 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 131875173 is about 11483.6916102793. The cubic root of 131875173 is about 509.0037877190.

The spelling of 131875173 in words is "one hundred thirty-one million, eight hundred seventy-five thousand, one hundred seventy-three".