213332144 has 10 divisors (see below), whose sum is σ = 413331060. Its totient is φ = 106666064.

The previous prime is 213332137. The next prime is 213332177. The reversal of 213332144 is 441233312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6666614 + ... + 6666645.

It is an arithmetic number, because the mean of its divisors is an integer number (41333106).

Almost surely, 2^213332144 is an apocalyptic number.

It is an amenable number.

213332144 is a deficient number, since it is larger than the sum of its proper divisors (199998916).

213332144 is a wasteful number, since it uses less digits than its factorization.

213332144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333267 (or 13333261 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 213332144 is about 14605.8941527042. The cubic root of 213332144 is about 597.5195224797.

Adding to 213332144 its reverse (441233312), we get a palindrome (654565456).

The spelling of 213332144 in words is "two hundred thirteen million, three hundred thirty-two thousand, one hundred forty-four".