131647651 has 2 divisors, whose sum is σ = 131647652. Its totient is φ = 131647650.

The previous prime is 131647619. The next prime is 131647709. The reversal of 131647651 is 156746131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131647651 - 2⁵ = 131647619 is a prime.

It is a super-2 number, since 2×131647651² = 34662208027635602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131648651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65823825 + 65823826.

It is an arithmetic number, because the mean of its divisors is an integer number (65823826).

Almost surely, 2^131647651 is an apocalyptic number.

131647651 is a deficient number, since it is larger than the sum of its proper divisors (1).

131647651 is an equidigital number, since it uses as much as digits as its factorization.

131647651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 131647651 is about 11473.7810245795. The cubic root of 131647651 is about 508.7108940113.

The spelling of 131647651 in words is "one hundred thirty-one million, six hundred forty-seven thousand, six hundred fifty-one".