68135465 has 8 divisors (see below), whose sum is σ = 82312200. Its totient is φ = 54141952.

The previous prime is 68135401. The next prime is 68135479. The reversal of 68135465 is 56453186.

It can be written as a sum of positive squares in 4 ways, for example, as 287296 + 67848169 = 536^2 + 8237^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68135465 - 2⁶ = 68135401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44984 + ... + 46473.

It is an arithmetic number, because the mean of its divisors is an integer number (10289025).

Almost surely, 2^68135465 is an apocalyptic number.

It is an amenable number.

68135465 is a deficient number, since it is larger than the sum of its proper divisors (14176735).

68135465 is a wasteful number, since it uses less digits than its factorization.

68135465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91611.

The product of its digits is 86400, while the sum is 38.

The square root of 68135465 is about 8254.4209366860. The cubic root of 68135465 is about 408.4363703143.

The spelling of 68135465 in words is "sixty-eight million, one hundred thirty-five thousand, four hundred sixty-five".