168157413 has 12 divisors (see below), whose sum is σ = 243842508. Its totient is φ = 111667200.

The previous prime is 168157369. The next prime is 168157417. The reversal of 168157413 is 314751861.

168157413 is a `hidden beast` number, since 1 + 6 + 81 + 574 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 136819809 + 31337604 = 11697^2 + 5598^2 .

It is not a de Polignac number, because 168157413 - 2⁶ = 168157349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168157417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34038 + ... + 38663.

It is an arithmetic number, because the mean of its divisors is an integer number (20320209).

Almost surely, 2^168157413 is an apocalyptic number.

It is an amenable number.

168157413 is a deficient number, since it is larger than the sum of its proper divisors (75685095).

168157413 is a wasteful number, since it uses less digits than its factorization.

168157413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72964 (or 72961 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 168157413 is about 12967.5523133705. The cubic root of 168157413 is about 551.9571189910.

The spelling of 168157413 in words is "one hundred sixty-eight million, one hundred fifty-seven thousand, four hundred thirteen".