68135361 has 16 divisors (see below), whose sum is σ = 108340224. Its totient is φ = 37241424.

The previous prime is 68135359. The next prime is 68135377. The reversal of 68135361 is 16353186.

It is not a de Polignac number, because 68135361 - 2¹ = 68135359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68135341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70051 + ... + 71016.

It is an arithmetic number, because the mean of its divisors is an integer number (6771264).

Almost surely, 2^68135361 is an apocalyptic number.

It is an amenable number.

68135361 is a deficient number, since it is larger than the sum of its proper divisors (40204863).

68135361 is a wasteful number, since it uses less digits than its factorization.

68135361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141100.

The product of its digits is 12960, while the sum is 33.

The square root of 68135361 is about 8254.4146370291. The cubic root of 68135361 is about 408.4361625057.

The spelling of 68135361 in words is "sixty-eight million, one hundred thirty-five thousand, three hundred sixty-one".