68597131 has 2 divisors, whose sum is σ = 68597132. Its totient is φ = 68597130.

The previous prime is 68597051. The next prime is 68597171. The reversal of 68597131 is 13179586.

It is an a-pointer prime, because the next prime (68597171) can be obtained adding 68597131 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68597131 - 2⁷ = 68597003 is a prime.

It is a super-2 number, since 2×68597131² = 9411132762862322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (68597171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34298565 + 34298566.

It is an arithmetic number, because the mean of its divisors is an integer number (34298566).

Almost surely, 2^68597131 is an apocalyptic number.

68597131 is a deficient number, since it is larger than the sum of its proper divisors (1).

68597131 is an equidigital number, since it uses as much as digits as its factorization.

68597131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 40.

The square root of 68597131 is about 8282.3384982745. The cubic root of 68597131 is about 409.3567764628.

The spelling of 68597131 in words is "sixty-eight million, five hundred ninety-seven thousand, one hundred thirty-one".