168512472 has 24 divisors (see below), whose sum is σ = 456388140. Its totient is φ = 56170800.

The previous prime is 168512471. The next prime is 168512473. The reversal of 168512472 is 274215861.

It is an interprime number because it is at equal distance from previous prime (168512471) and next prime (168512473).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168512471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1170154 + ... + 1170297.

Almost surely, 2^168512472 is an apocalyptic number.

168512472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

168512472 is an abundant number, since it is smaller than the sum of its proper divisors (287875668).

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

168512472 is a wasteful number, since it uses less digits than its factorization.

168512472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340463 (or 2340456 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 168512472 is about 12981.2353803481. The cubic root of 168512472 is about 552.3453258254.

The spelling of 168512472 in words is "one hundred sixty-eight million, five hundred twelve thousand, four hundred seventy-two".