168801913 has 12 divisors (see below), whose sum is σ = 202697472. Its totient is φ = 140018760.

The previous prime is 168801901. The next prime is 168801931. The reversal of 168801913 is 319108861.

It is not a de Polignac number, because 168801913 - 2¹³ = 168793721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168801973) 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, 54045 + ... + 57082.

It is an arithmetic number, because the mean of its divisors is an integer number (16891456).

Almost surely, 2^168801913 is an apocalyptic number.

It is an amenable number.

168801913 is a deficient number, since it is larger than the sum of its proper divisors (33895559).

168801913 is a wasteful number, since it uses less digits than its factorization.

168801913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111172 (or 111165 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 168801913 is about 12992.3790354192. The cubic root of 168801913 is about 552.6613853943.

The spelling of 168801913 in words is "one hundred sixty-eight million, eight hundred one thousand, nine hundred thirteen".