68358137 has 2 divisors, whose sum is σ = 68358138. Its totient is φ = 68358136.

The previous prime is 68358109. The next prime is 68358179. The reversal of 68358137 is 73185386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63425296 + 4932841 = 7964^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 68358137 - 2²⁶ = 1249273 is a prime.

It is a super-2 number, since 2×68358137² = 9345669788221538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68358094 and 68358103.

It is not a weakly prime, because it can be changed into another prime (68358187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34179068 + 34179069.

It is an arithmetic number, because the mean of its divisors is an integer number (34179069).

Almost surely, 2^68358137 is an apocalyptic number.

It is an amenable number.

68358137 is a deficient number, since it is larger than the sum of its proper divisors (1).

68358137 is an equidigital number, since it uses as much as digits as its factorization.

68358137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 68358137 is about 8267.8979795351. The cubic root of 68358137 is about 408.8808204432.

The spelling of 68358137 in words is "sixty-eight million, three hundred fifty-eight thousand, one hundred thirty-seven".