68610131 has 2 divisors, whose sum is σ = 68610132. Its totient is φ = 68610130.

The previous prime is 68610107. The next prime is 68610133. The reversal of 68610131 is 13101686.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68610131 - 2⁶ = 68610067 is a prime.

It is a super-2 number, since 2×68610131² = 9414700151674322, which contains 22 as substring.

Together with 68610133, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68610131.

It is not a weakly prime, because it can be changed into another prime (68610133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34305065 + 34305066.

It is an arithmetic number, because the mean of its divisors is an integer number (34305066).

Almost surely, 2^68610131 is an apocalyptic number.

68610131 is a deficient number, since it is larger than the sum of its proper divisors (1).

68610131 is an equidigital number, since it uses as much as digits as its factorization.

68610131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 68610131 is about 8283.1232636005. The cubic root of 68610131 is about 409.3826342107.

The spelling of 68610131 in words is "sixty-eight million, six hundred ten thousand, one hundred thirty-one".