131056613 has 2 divisors, whose sum is σ = 131056614. Its totient is φ = 131056612.

The previous prime is 131056591. The next prime is 131056619. The reversal of 131056613 is 316650131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120604324 + 10452289 = 10982^2 + 3233^2 .

It is a cyclic number.

It is not a de Polignac number, because 131056613 - 2¹⁴ = 131040229 is a prime.

It is a super-2 number, since 2×131056613² = 34351671622063538, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131056619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65528306 + 65528307.

It is an arithmetic number, because the mean of its divisors is an integer number (65528307).

Almost surely, 2^131056613 is an apocalyptic number.

It is an amenable number.

131056613 is a deficient number, since it is larger than the sum of its proper divisors (1).

131056613 is an equidigital number, since it uses as much as digits as its factorization.

131056613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 131056613 is about 11447.9960255059. The cubic root of 131056613 is about 507.9484584594.

The spelling of 131056613 in words is "one hundred thirty-one million, fifty-six thousand, six hundred thirteen".