168160389 has 4 divisors (see below), whose sum is σ = 224213856. Its totient is φ = 112106924.

The previous prime is 168160387. The next prime is 168160409. The reversal of 168160389 is 983061861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168160389 - 2¹ = 168160387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168160389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168160387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28026729 + ... + 28026734.

It is an arithmetic number, because the mean of its divisors is an integer number (56053464).

Almost surely, 2^168160389 is an apocalyptic number.

It is an amenable number.

168160389 is a deficient number, since it is larger than the sum of its proper divisors (56053467).

168160389 is an equidigital number, since it uses as much as digits as its factorization.

168160389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56053466.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 168160389 is about 12967.6670608094. The cubic root of 168160389 is about 551.9603750962.

The spelling of 168160389 in words is "one hundred sixty-eight million, one hundred sixty thousand, three hundred eighty-nine".