168657413 has 8 divisors (see below), whose sum is σ = 176888448. Its totient is φ = 160501264.

The previous prime is 168657389. The next prime is 168657431. The reversal of 168657413 is 314756861.

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 168657413 - 2²⁶ = 101548549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168657443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14081 + ... + 23142.

It is an arithmetic number, because the mean of its divisors is an integer number (22111056).

Almost surely, 2^168657413 is an apocalyptic number.

It is an amenable number.

168657413 is a deficient number, since it is larger than the sum of its proper divisors (8231035).

168657413 is a wasteful number, since it uses less digits than its factorization.

168657413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37443.

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

The square root of 168657413 is about 12986.8168925261. The cubic root of 168657413 is about 552.5036415886.

The spelling of 168657413 in words is "one hundred sixty-eight million, six hundred fifty-seven thousand, four hundred thirteen".