131479823 has 8 divisors (see below), whose sum is σ = 136217280. Its totient is φ = 126756000.

The previous prime is 131479787. The next prime is 131479837. The reversal of 131479823 is 328974131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131479823 is a prime.

It is a super-2 number, since 2×131479823² = 34573887712222658, 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 (131479883) 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, 18761 + ... + 24797.

It is an arithmetic number, because the mean of its divisors is an integer number (17027160).

Almost surely, 2^131479823 is an apocalyptic number.

131479823 is a deficient number, since it is larger than the sum of its proper divisors (4737457).

131479823 is an equidigital number, since it uses as much as digits as its factorization.

131479823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817.

The product of its digits is 36288, while the sum is 38.

The square root of 131479823 is about 11466.4651484230. The cubic root of 131479823 is about 508.4946292651.

The spelling of 131479823 in words is "one hundred thirty-one million, four hundred seventy-nine thousand, eight hundred twenty-three".