131245651 has 2 divisors, whose sum is σ = 131245652. Its totient is φ = 131245650.

The previous prime is 131245643. The next prime is 131245657. The reversal of 131245651 is 156542131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131245651 - 2³ = 131245643 is a prime.

It is not a weakly prime, because it can be changed into another prime (131245657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65622825 + 65622826.

It is an arithmetic number, because the mean of its divisors is an integer number (65622826).

Almost surely, 2^131245651 is an apocalyptic number.

131245651 is a deficient number, since it is larger than the sum of its proper divisors (1).

131245651 is an equidigital number, since it uses as much as digits as its factorization.

131245651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

The square root of 131245651 is about 11456.2494298963. The cubic root of 131245651 is about 508.1925652562.

Adding to 131245651 its reverse (156542131), we get a palindrome (287787782).

The spelling of 131245651 in words is "one hundred thirty-one million, two hundred forty-five thousand, six hundred fifty-one".