131116457 has 2 divisors, whose sum is σ = 131116458. Its totient is φ = 131116456.

The previous prime is 131116441. The next prime is 131116463. The reversal of 131116457 is 754611131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130965136 + 151321 = 11444^2 + 389^2 .

It is a cyclic number.

It is not a de Polignac number, because 131116457 - 2⁴ = 131116441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131116477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65558228 + 65558229.

It is an arithmetic number, because the mean of its divisors is an integer number (65558229).

Almost surely, 2^131116457 is an apocalyptic number.

It is an amenable number.

131116457 is a deficient number, since it is larger than the sum of its proper divisors (1).

131116457 is an equidigital number, since it uses as much as digits as its factorization.

131116457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 29.

The square root of 131116457 is about 11450.6094597624. The cubic root of 131116457 is about 508.0257610368.

Adding to 131116457 its reverse (754611131), we get a palindrome (885727588).

The spelling of 131116457 in words is "one hundred thirty-one million, one hundred sixteen thousand, four hundred fifty-seven".