121610604 has 24 divisors (see below), whose sum is σ = 287179200. Its totient is φ = 40048144.

The previous prime is 121610563. The next prime is 121610647. The reversal of 121610604 is 406016121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60054 + ... + 62045.

It is an arithmetic number, because the mean of its divisors is an integer number (11965800).

Almost surely, 2^121610604 is an apocalyptic number.

It is an amenable number.

121610604 is an abundant number, since it is smaller than the sum of its proper divisors (165568596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121610604 is a wasteful number, since it uses less digits than its factorization.

121610604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122189 (or 122187 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 121610604 is about 11027.7198005753. The cubic root of 121610604 is about 495.4393324367.

Adding to 121610604 its reverse (406016121), we get a palindrome (527626725).

The spelling of 121610604 in words is "one hundred twenty-one million, six hundred ten thousand, six hundred four".