213702452 has 6 divisors (see below), whose sum is σ = 373979298. Its totient is φ = 106851224.

The previous prime is 213702449. The next prime is 213702509. The reversal of 213702452 is 254207312.

It can be written as a sum of positive squares in only one way, i.e., 176199076 + 37503376 = 13274^2 + 6124^2 .

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, 26712803 + ... + 26712810.

It is an arithmetic number, because the mean of its divisors is an integer number (62329883).

Almost surely, 2^213702452 is an apocalyptic number.

It is an amenable number.

213702452 is a deficient number, since it is larger than the sum of its proper divisors (160276846).

213702452 is a wasteful number, since it uses less digits than its factorization.

213702452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53425617 (or 53425615 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 213702452 is about 14618.5653194833. The cubic root of 213702452 is about 597.8650530871.

Adding to 213702452 its reverse (254207312), we get a palindrome (467909764).

The spelling of 213702452 in words is "two hundred thirteen million, seven hundred two thousand, four hundred fifty-two".