121964628 has 12 divisors (see below), whose sum is σ = 284584160. Its totient is φ = 40654872.

The previous prime is 121964611. The next prime is 121964639. The reversal of 121964628 is 826469121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5081848 + ... + 5081871.

Almost surely, 2^121964628 is an apocalyptic number.

It is an amenable number.

121964628 is an abundant number, since it is smaller than the sum of its proper divisors (162619532).

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

121964628 is a wasteful number, since it uses less digits than its factorization.

121964628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10163726 (or 10163724 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 121964628 is about 11043.7596859041. The cubic root of 121964628 is about 495.9196290604.

The spelling of 121964628 in words is "one hundred twenty-one million, nine hundred sixty-four thousand, six hundred twenty-eight".