131500379 has 4 divisors (see below), whose sum is σ = 131788584. Its totient is φ = 131212176.

The previous prime is 131500373. The next prime is 131500393. The reversal of 131500379 is 973005131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973005131 = 7 ⋅139000733.

It is a cyclic number.

It is not a de Polignac number, because 131500379 - 2⁴ = 131500363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131500373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143417 + ... + 144330.

It is an arithmetic number, because the mean of its divisors is an integer number (32947146).

Almost surely, 2^131500379 is an apocalyptic number.

131500379 is a deficient number, since it is larger than the sum of its proper divisors (288205).

131500379 is an equidigital number, since it uses as much as digits as its factorization.

131500379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288204.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 131500379 is about 11467.3614663531. The cubic root of 131500379 is about 508.5211278073.

The spelling of 131500379 in words is "one hundred thirty-one million, five hundred thousand, three hundred seventy-nine".