168626313 has 16 divisors (see below), whose sum is σ = 251645760. Its totient is φ = 111594528.

The previous prime is 168626309. The next prime is 168626323. The reversal of 168626313 is 313626861.

168626313 is a `hidden beast` number, since 16 + 8 + 6 + 2 + 631 + 3 = 666.

It is not a de Polignac number, because 168626313 - 2² = 168626309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168626323) 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, 19095 + ... + 26492.

It is an arithmetic number, because the mean of its divisors is an integer number (15727860).

Almost surely, 2^168626313 is an apocalyptic number.

It is an amenable number.

168626313 is a deficient number, since it is larger than the sum of its proper divisors (83019447).

168626313 is a wasteful number, since it uses less digits than its factorization.

168626313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45733 (or 45727 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 168626313 is about 12985.6194692437. The cubic root of 168626313 is about 552.4696794100.

The spelling of 168626313 in words is "one hundred sixty-eight million, six hundred twenty-six thousand, three hundred thirteen".