164212572 has 24 divisors (see below), whose sum is σ = 383467392. Its totient is φ = 54694000.

The previous prime is 164212553. The next prime is 164212577. The reversal of 164212572 is 275212461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164212577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12697 + ... + 22127.

It is an arithmetic number, because the mean of its divisors is an integer number (15977808).

Almost surely, 2^164212572 is an apocalyptic number.

164212572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164212572 is an abundant number, since it is smaller than the sum of its proper divisors (219254820).

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

164212572 is a wasteful number, since it uses less digits than its factorization.

164212572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10889 (or 10887 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 164212572 is about 12814.5453294294. The cubic root of 164212572 is about 547.6067605239.

The spelling of 164212572 in words is "one hundred sixty-four million, two hundred twelve thousand, five hundred seventy-two".