131583479 has 2 divisors, whose sum is σ = 131583480. Its totient is φ = 131583478.

The previous prime is 131583467. The next prime is 131583497. The reversal of 131583479 is 974385131.

Together with next prime (131583497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131583479 - 2⁸ = 131583223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131583679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65791739 + 65791740.

It is an arithmetic number, because the mean of its divisors is an integer number (65791740).

Almost surely, 2^131583479 is an apocalyptic number.

131583479 is a deficient number, since it is larger than the sum of its proper divisors (1).

131583479 is an equidigital number, since it uses as much as digits as its factorization.

131583479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 131583479 is about 11470.9842210684. The cubic root of 131583479 is about 508.6282230813.

The spelling of 131583479 in words is "one hundred thirty-one million, five hundred eighty-three thousand, four hundred seventy-nine".