131376381 has 8 divisors (see below), whose sum is σ = 179902944. Its totient is φ = 85217040.

The previous prime is 131376353. The next prime is 131376389. The reversal of 131376381 is 183673131.

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

It is not a de Polignac number, because 131376381 - 2⁹ = 131375869 is a prime.

It is a super-2 number, since 2×131376381² = 34519506969314322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131376389) 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 7 ways as a sum of consecutive naturals, for example, 591675 + ... + 591896.

It is an arithmetic number, because the mean of its divisors is an integer number (22487868).

Almost surely, 2^131376381 is an apocalyptic number.

It is an amenable number.

131376381 is a deficient number, since it is larger than the sum of its proper divisors (48526563).

131376381 is a wasteful number, since it uses less digits than its factorization.

131376381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183611.

The product of its digits is 9072, while the sum is 33.

The square root of 131376381 is about 11461.9536292903. The cubic root of 131376381 is about 508.3612412401.

The spelling of 131376381 in words is "one hundred thirty-one million, three hundred seventy-six thousand, three hundred eighty-one".