168151930 has 32 divisors (see below), whose sum is σ = 327945024. Its totient is φ = 61829376.

The previous prime is 168151909. The next prime is 168151931. The reversal of 168151930 is 39151861.

168151930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (168151931) 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, 4192 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (10248282).

Almost surely, 2^168151930 is an apocalyptic number.

168151930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168151930 is a deficient number, since it is larger than the sum of its proper divisors (159793094).

168151930 is a wasteful number, since it uses less digits than its factorization.

168151930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23070.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 168151930 is about 12967.3408993517. The cubic root of 168151930 is about 551.9511198228.

The spelling of 168151930 in words is "one hundred sixty-eight million, one hundred fifty-one thousand, nine hundred thirty".