131873373 has 16 divisors (see below), whose sum is σ = 197101440. Its totient is φ = 87135552.

The previous prime is 131873363. The next prime is 131873383. The reversal of 131873373 is 373378131.

131873373 is a `hidden beast` number, since 1 + 318 + 7 + 337 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (131873363) and next prime (131873383).

It is not a de Polignac number, because 131873373 - 2⁶ = 131873309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131873363) 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, 18561 + ... + 24662.

It is an arithmetic number, because the mean of its divisors is an integer number (12318840).

Almost surely, 2^131873373 is an apocalyptic number.

It is an amenable number.

131873373 is a deficient number, since it is larger than the sum of its proper divisors (65228067).

131873373 is a wasteful number, since it uses less digits than its factorization.

131873373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43345 (or 43339 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 131873373 is about 11483.6132380014. The cubic root of 131873373 is about 509.0014718649.

It can be divided in two parts, 1318 and 73373, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 131873373 in words is "one hundred thirty-one million, eight hundred seventy-three thousand, three hundred seventy-three".