131213659 has 2 divisors, whose sum is σ = 131213660. Its totient is φ = 131213658.

The previous prime is 131213647. The next prime is 131213711. The reversal of 131213659 is 956312131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131213659 - 2¹³ = 131205467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131213659.

It is not a weakly prime, because it can be changed into another prime (131214659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65606829 + 65606830.

It is an arithmetic number, because the mean of its divisors is an integer number (65606830).

Almost surely, 2^131213659 is an apocalyptic number.

131213659 is a deficient number, since it is larger than the sum of its proper divisors (1).

131213659 is an equidigital number, since it uses as much as digits as its factorization.

131213659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 31.

The square root of 131213659 is about 11454.8530763166. The cubic root of 131213659 is about 508.1512701286.

The spelling of 131213659 in words is "one hundred thirty-one million, two hundred thirteen thousand, six hundred fifty-nine".