131083397 has 2 divisors, whose sum is σ = 131083398. Its totient is φ = 131083396.

The previous prime is 131083369. The next prime is 131083411. The reversal of 131083397 is 793380131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129640996 + 1442401 = 11386^2 + 1201^2 .

It is a cyclic number.

It is not a de Polignac number, because 131083397 - 2⁶ = 131083333 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 (131083297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65541698 + 65541699.

It is an arithmetic number, because the mean of its divisors is an integer number (65541699).

Almost surely, 2^131083397 is an apocalyptic number.

It is an amenable number.

131083397 is a deficient number, since it is larger than the sum of its proper divisors (1).

131083397 is an equidigital number, since it uses as much as digits as its factorization.

131083397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 131083397 is about 11449.1657774704. The cubic root of 131083397 is about 507.9830591928.

The spelling of 131083397 in words is "one hundred thirty-one million, eighty-three thousand, three hundred ninety-seven".