131435651 has 2 divisors, whose sum is σ = 131435652. Its totient is φ = 131435650.

The previous prime is 131435621. The next prime is 131435659. The reversal of 131435651 is 156534131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131435651 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131435659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717825 + 65717826.

It is an arithmetic number, because the mean of its divisors is an integer number (65717826).

Almost surely, 2^131435651 is an apocalyptic number.

131435651 is a deficient number, since it is larger than the sum of its proper divisors (1).

131435651 is an equidigital number, since it uses as much as digits as its factorization.

131435651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 131435651 is about 11464.5388481177. The cubic root of 131435651 is about 508.4376782185.

Adding to 131435651 its reverse (156534131), we get a palindrome (287969782).

The spelling of 131435651 in words is "one hundred thirty-one million, four hundred thirty-five thousand, six hundred fifty-one".