168724012 has 12 divisors (see below), whose sum is σ = 295537816. Its totient is φ = 84284640.

The previous prime is 168724007. The next prime is 168724091. The reversal of 168724012 is 210427861.

It is a super-2 number, since 2×168724012² = 56935584450752288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14289 + ... + 23272.

Almost surely, 2^168724012 is an apocalyptic number.

It is an amenable number.

168724012 is a deficient number, since it is larger than the sum of its proper divisors (126813804).

168724012 is a wasteful number, since it uses less digits than its factorization.

168724012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38688 (or 38686 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 168724012 is about 12989.3807396658. The cubic root of 168724012 is about 552.5763557514.

The spelling of 168724012 in words is "one hundred sixty-eight million, seven hundred twenty-four thousand, twelve".