164875572 has 18 divisors (see below), whose sum is σ = 416768898. Its totient is φ = 54958512.

The previous prime is 164875553. The next prime is 164875583. The reversal of 164875572 is 275578461.

164875572 is a `hidden beast` number, since 1 + 6 + 4 + 8 + 75 + 572 = 666.

164875572 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163942416 + 933156 = 12804^2 + 966^2 .

It is a tau number, because it is divible by the number of its divisors (18).

164875572 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2289903 + ... + 2289974.

Almost surely, 2^164875572 is an apocalyptic number.

164875572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164875572 is an abundant number, since it is smaller than the sum of its proper divisors (251893326).

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

164875572 is a wasteful number, since it uses less digits than its factorization.

164875572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579887 (or 4579882 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 164875572 is about 12840.3883118853. The cubic root of 164875572 is about 548.3427491559.

The spelling of 164875572 in words is "one hundred sixty-four million, eight hundred seventy-five thousand, five hundred seventy-two".