131040457 has 2 divisors, whose sum is σ = 131040458. Its totient is φ = 131040456.

The previous prime is 131040389. The next prime is 131040461. The reversal of 131040457 is 754040131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98823481 + 32216976 = 9941^2 + 5676^2 .

It is a cyclic number.

It is not a de Polignac number, because 131040457 - 2¹⁵ = 131007689 is a prime.

It is not a weakly prime, because it can be changed into another prime (131040467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65520228 + 65520229.

It is an arithmetic number, because the mean of its divisors is an integer number (65520229).

Almost surely, 2^131040457 is an apocalyptic number.

It is an amenable number.

131040457 is a deficient number, since it is larger than the sum of its proper divisors (1).

131040457 is an equidigital number, since it uses as much as digits as its factorization.

131040457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 131040457 is about 11447.2903780764. The cubic root of 131040457 is about 507.9275851580.

Adding to 131040457 its reverse (754040131), we get a palindrome (885080588).

The spelling of 131040457 in words is "one hundred thirty-one million, forty thousand, four hundred fifty-seven".