131598407 has 2 divisors, whose sum is σ = 131598408. Its totient is φ = 131598406.

The previous prime is 131598373. The next prime is 131598421. The reversal of 131598407 is 704895131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131598407 - 2¹⁰ = 131597383 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 (131598457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65799203 + 65799204.

It is an arithmetic number, because the mean of its divisors is an integer number (65799204).

Almost surely, 2^131598407 is an apocalyptic number.

131598407 is a deficient number, since it is larger than the sum of its proper divisors (1).

131598407 is an equidigital number, since it uses as much as digits as its factorization.

131598407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 131598407 is about 11471.6348878440. The cubic root of 131598407 is about 508.6474567902.

The spelling of 131598407 in words is "one hundred thirty-one million, five hundred ninety-eight thousand, four hundred seven".