121304589 has 16 divisors (see below), whose sum is σ = 185009280. Its totient is φ = 69255360.

The previous prime is 121304587. The next prime is 121304621. The reversal of 121304589 is 985403121.

It is not a de Polignac number, because 121304589 - 2¹ = 121304587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121304587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33319 + ... + 36779.

It is an arithmetic number, because the mean of its divisors is an integer number (11563080).

Almost surely, 2^121304589 is an apocalyptic number.

It is an amenable number.

121304589 is a deficient number, since it is larger than the sum of its proper divisors (63704691).

121304589 is a wasteful number, since it uses less digits than its factorization.

121304589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 121304589 is about 11013.8362526415. The cubic root of 121304589 is about 495.0234169108.

The spelling of 121304589 in words is "one hundred twenty-one million, three hundred four thousand, five hundred eighty-nine".