213652172 has 6 divisors (see below), whose sum is σ = 373891308. Its totient is φ = 106826084.

The previous prime is 213652147. The next prime is 213652181. The reversal of 213652172 is 271256312.

It is a happy number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 26706518 + ... + 26706525.

It is an arithmetic number, because the mean of its divisors is an integer number (62315218).

Almost surely, 2^213652172 is an apocalyptic number.

It is an amenable number.

213652172 is a deficient number, since it is larger than the sum of its proper divisors (160239136).

213652172 is a wasteful number, since it uses less digits than its factorization.

213652172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53413047 (or 53413045 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 213652172 is about 14616.8454873136. The cubic root of 213652172 is about 597.8181607649.

The spelling of 213652172 in words is "two hundred thirteen million, six hundred fifty-two thousand, one hundred seventy-two".