260608631 has 2 divisors, whose sum is σ = 260608632. Its totient is φ = 260608630.

The previous prime is 260608571. The next prime is 260608637. The reversal of 260608631 is 136806062.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260608631 is a prime.

It is a super-2 number, since 2×260608631² = 135833717103388322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260608637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130304315 + 130304316.

It is an arithmetic number, because the mean of its divisors is an integer number (130304316).

Almost surely, 2^260608631 is an apocalyptic number.

260608631 is a deficient number, since it is larger than the sum of its proper divisors (1).

260608631 is an equidigital number, since it uses as much as digits as its factorization.

260608631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 260608631 is about 16143.3773108355. The cubic root of 260608631 is about 638.7480661397.

The spelling of 260608631 in words is "two hundred sixty million, six hundred eight thousand, six hundred thirty-one".