213625164 has 24 divisors (see below), whose sum is σ = 504770560. Its totient is φ = 70306704.

The previous prime is 213625147. The next prime is 213625171. The reversal of 213625164 is 461526312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111724 + ... + 113619.

Almost surely, 2^213625164 is an apocalyptic number.

It is an amenable number.

213625164 is an abundant number, since it is smaller than the sum of its proper divisors (291145396).

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

213625164 is a wasteful number, since it uses less digits than its factorization.

213625164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225429 (or 225427 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 213625164 is about 14615.9215925647. The cubic root of 213625164 is about 597.7929694253.

The spelling of 213625164 in words is "two hundred thirteen million, six hundred twenty-five thousand, one hundred sixty-four".