68852137 has 2 divisors, whose sum is σ = 68852138. Its totient is φ = 68852136.

The previous prime is 68852131. The next prime is 68852167. The reversal of 68852137 is 73125886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60155536 + 8696601 = 7756^2 + 2949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68852137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68852137.

It is not a weakly prime, because it can be changed into another prime (68852131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34426068 + 34426069.

It is an arithmetic number, because the mean of its divisors is an integer number (34426069).

Almost surely, 2^68852137 is an apocalyptic number.

It is an amenable number.

68852137 is a deficient number, since it is larger than the sum of its proper divisors (1).

68852137 is an equidigital number, since it uses as much as digits as its factorization.

68852137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 68852137 is about 8297.7187828945. The cubic root of 68852137 is about 409.8634028401.

It can be divided in two parts, 688 and 52137, that added together give a palindrome (52825).

The spelling of 68852137 in words is "sixty-eight million, eight hundred fifty-two thousand, one hundred thirty-seven".