131378319 has 12 divisors (see below), whose sum is σ = 192369216. Its totient is φ = 86385312.

The previous prime is 131378311. The next prime is 131378321. The reversal of 131378319 is 913873131.

It is not a de Polignac number, because 131378319 - 2³ = 131378311 is a prime.

It is a super-2 number, since 2×131378319² = 34520525406531522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131378311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99327 + ... + 100640.

It is an arithmetic number, because the mean of its divisors is an integer number (16030768).

Almost surely, 2^131378319 is an apocalyptic number.

131378319 is a deficient number, since it is larger than the sum of its proper divisors (60990897).

131378319 is a wasteful number, since it uses less digits than its factorization.

131378319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200046 (or 200043 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 131378319 is about 11462.0381695404. The cubic root of 131378319 is about 508.3637409264.

The spelling of 131378319 in words is "one hundred thirty-one million, three hundred seventy-eight thousand, three hundred nineteen".