212339572 has 12 divisors (see below), whose sum is σ = 375274116. Its totient is φ = 105118400.

The previous prime is 212339551. The next prime is 212339581. The reversal of 212339572 is 275933212.

It can be written as a sum of positive squares in 2 ways, for example, as 153908836 + 58430736 = 12406^2 + 7644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262393 + ... + 263200.

It is an arithmetic number, because the mean of its divisors is an integer number (31272843).

Almost surely, 2^212339572 is an apocalyptic number.

It is an amenable number.

212339572 is a deficient number, since it is larger than the sum of its proper divisors (162934544).

212339572 is a wasteful number, since it uses less digits than its factorization.

212339572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525698 (or 525696 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 212339572 is about 14571.8760631567. The cubic root of 212339572 is about 596.5913870813.

The spelling of 212339572 in words is "two hundred twelve million, three hundred thirty-nine thousand, five hundred seventy-two".