213102284 has 6 divisors (see below), whose sum is σ = 372929004. Its totient is φ = 106551140.

The previous prime is 213102283. The next prime is 213102289. The reversal of 213102284 is 482201312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213102283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26637782 + ... + 26637789.

It is an arithmetic number, because the mean of its divisors is an integer number (62154834).

Almost surely, 2^213102284 is an apocalyptic number.

It is an amenable number.

213102284 is a deficient number, since it is larger than the sum of its proper divisors (159826720).

213102284 is a wasteful number, since it uses less digits than its factorization.

213102284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53275575 (or 53275573 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 213102284 is about 14598.0232908432. The cubic root of 213102284 is about 597.3048412893.

Adding to 213102284 its reverse (482201312), we get a palindrome (695303596).

The spelling of 213102284 in words is "two hundred thirteen million, one hundred two thousand, two hundred eighty-four".