131828979 has 8 divisors (see below), whose sum is σ = 177478912. Its totient is φ = 87032520.

The previous prime is 131828953. The next prime is 131828989. The reversal of 131828979 is 979828131.

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

It is not a de Polignac number, because 131828979 - 2⁵ = 131828947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131828989) 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, 213007 + ... + 213624.

It is an arithmetic number, because the mean of its divisors is an integer number (22184864).

Almost surely, 2^131828979 is an apocalyptic number.

131828979 is a deficient number, since it is larger than the sum of its proper divisors (45649933).

131828979 is a wasteful number, since it uses less digits than its factorization.

131828979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426737.

The product of its digits is 217728, while the sum is 48.

The square root of 131828979 is about 11481.6801470865. The cubic root of 131828979 is about 508.9443485125.

The spelling of 131828979 in words is "one hundred thirty-one million, eight hundred twenty-eight thousand, nine hundred seventy-nine".