131874397 has 8 divisors (see below), whose sum is σ = 137700000. Its totient is φ = 126134064.

The previous prime is 131874371. The next prime is 131874469. The reversal of 131874397 is 793478131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131874397 - 2¹⁵ = 131841629 is a prime.

It is a super-2 number, since 2×131874397² = 34781713168227218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131874097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18147 + ... + 24352.

It is an arithmetic number, because the mean of its divisors is an integer number (17212500).

Almost surely, 2^131874397 is an apocalyptic number.

It is an amenable number.

131874397 is a deficient number, since it is larger than the sum of its proper divisors (5825603).

131874397 is a wasteful number, since it uses less digits than its factorization.

131874397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42635.

The product of its digits is 127008, while the sum is 43.

The square root of 131874397 is about 11483.6578231851. The cubic root of 131874397 is about 509.0027893312.

The spelling of 131874397 in words is "one hundred thirty-one million, eight hundred seventy-four thousand, three hundred ninety-seven".