68526137 has 2 divisors, whose sum is σ = 68526138. Its totient is φ = 68526136.

The previous prime is 68526097. The next prime is 68526163. The reversal of 68526137 is 73162586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66406201 + 2119936 = 8149^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 68526137 - 2⁸ = 68525881 is a prime.

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 68526137.

It is not a weakly prime, because it can be changed into another prime (68526197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34263068 + 34263069.

It is an arithmetic number, because the mean of its divisors is an integer number (34263069).

Almost surely, 2^68526137 is an apocalyptic number.

It is an amenable number.

68526137 is a deficient number, since it is larger than the sum of its proper divisors (1).

68526137 is an equidigital number, since it uses as much as digits as its factorization.

68526137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 68526137 is about 8278.0515219465. The cubic root of 68526137 is about 409.2155076463.

The spelling of 68526137 in words is "sixty-eight million, five hundred twenty-six thousand, one hundred thirty-seven".