131372386 has 4 divisors (see below), whose sum is σ = 197058582. Its totient is φ = 65686192.

The previous prime is 131372363. The next prime is 131372429. The reversal of 131372386 is 683273131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683273131 = 727 ⋅939853.

It can be written as a sum of positive squares in only one way, i.e., 121418361 + 9954025 = 11019^2 + 3155^2 .

It is a super-3 number, since 3×131372386³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32843095 + ... + 32843098.

Almost surely, 2^131372386 is an apocalyptic number.

131372386 is a deficient number, since it is larger than the sum of its proper divisors (65686196).

131372386 is an equidigital number, since it uses as much as digits as its factorization.

131372386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65686195.

The product of its digits is 18144, while the sum is 34.

The square root of 131372386 is about 11461.7793557545. The cubic root of 131372386 is about 508.3560883003.

The spelling of 131372386 in words is "one hundred thirty-one million, three hundred seventy-two thousand, three hundred eighty-six".