212513704 has 16 divisors (see below), whose sum is σ = 429114420. Its totient is φ = 98083200.

The previous prime is 212513699. The next prime is 212513723. The reversal of 212513704 is 407315212.

It is a happy number.

212513704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 209960100 + 2553604 = 14490^2 + 1598^2 .

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, 1021597 + ... + 1021804.

Almost surely, 2^212513704 is an apocalyptic number.

It is an amenable number.

212513704 is an abundant number, since it is smaller than the sum of its proper divisors (216600716).

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

212513704 is a wasteful number, since it uses less digits than its factorization.

212513704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043420 (or 2043416 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 212513704 is about 14577.8497728574. The cubic root of 212513704 is about 596.7544235261.

Adding to 212513704 its reverse (407315212), we get a palindrome (619828916).

The spelling of 212513704 in words is "two hundred twelve million, five hundred thirteen thousand, seven hundred four".