168912312 has 16 divisors (see below), whose sum is σ = 422280840. Its totient is φ = 56304096.

The previous prime is 168912311. The next prime is 168912353. The reversal of 168912312 is 213219861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168912311) 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, 3518983 + ... + 3519030.

Almost surely, 2^168912312 is an apocalyptic number.

168912312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168912312 is an abundant number, since it is smaller than the sum of its proper divisors (253368528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168912312 is a wasteful number, since it uses less digits than its factorization.

168912312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038022 (or 7038018 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 168912312 is about 12996.6269470198. The cubic root of 168912312 is about 552.7818421017.

The spelling of 168912312 in words is "one hundred sixty-eight million, nine hundred twelve thousand, three hundred twelve".