213241604 has 24 divisors (see below), whose sum is σ = 380184000. Its totient is φ = 104626080.

The previous prime is 213241583. The next prime is 213241607. The reversal of 213241604 is 406142312.

213241604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213241604.

It is not an unprimeable number, because it can be changed into a prime (213241607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145427 + ... + 146885.

It is an arithmetic number, because the mean of its divisors is an integer number (15841000).

Almost surely, 2^213241604 is an apocalyptic number.

It is an amenable number.

213241604 is a deficient number, since it is larger than the sum of its proper divisors (166942396).

213241604 is a wasteful number, since it uses less digits than its factorization.

213241604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123 (or 2121 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 213241604 is about 14602.7943901159. The cubic root of 213241604 is about 597.4349797072.

Adding to 213241604 its reverse (406142312), we get a palindrome (619383916).

The spelling of 213241604 in words is "two hundred thirteen million, two hundred forty-one thousand, six hundred four".