131251357 has 2 divisors, whose sum is σ = 131251358. Its totient is φ = 131251356.

The previous prime is 131251327. The next prime is 131251433. The reversal of 131251357 is 753152131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129640996 + 1610361 = 11386^2 + 1269^2 .

It is a cyclic number.

It is not a de Polignac number, because 131251357 - 2¹¹ = 131249309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131251327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65625678 + 65625679.

It is an arithmetic number, because the mean of its divisors is an integer number (65625679).

Almost surely, 2^131251357 is an apocalyptic number.

It is an amenable number.

131251357 is a deficient number, since it is larger than the sum of its proper divisors (1).

131251357 is an equidigital number, since it uses as much as digits as its factorization.

131251357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3150, while the sum is 28.

The square root of 131251357 is about 11456.4984615719. The cubic root of 131251357 is about 508.1999298298.

The spelling of 131251357 in words is "one hundred thirty-one million, two hundred fifty-one thousand, three hundred fifty-seven".