213424252 has 6 divisors (see below), whose sum is σ = 373492448. Its totient is φ = 106712124.

The previous prime is 213424241. The next prime is 213424261. The reversal of 213424252 is 252424312.

213424252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×213424252² = 91099822683519008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26678028 + ... + 26678035.

Almost surely, 2^213424252 is an apocalyptic number.

It is an amenable number.

213424252 is a deficient number, since it is larger than the sum of its proper divisors (160068196).

213424252 is a wasteful number, since it uses less digits than its factorization.

213424252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53356067 (or 53356065 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 213424252 is about 14609.0469230542. The cubic root of 213424252 is about 597.6055048486.

Adding to 213424252 its reverse (252424312), we get a palindrome (465848564).

The spelling of 213424252 in words is "two hundred thirteen million, four hundred twenty-four thousand, two hundred fifty-two".