121964980 has 12 divisors (see below), whose sum is σ = 256126500. Its totient is φ = 48785984.

The previous prime is 121964957. The next prime is 121965017. The reversal of 121964980 is 89469121.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 27836176 = 9702^2 + 5276^2 .

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, 3049105 + ... + 3049144.

It is an arithmetic number, because the mean of its divisors is an integer number (21343875).

Almost surely, 2^121964980 is an apocalyptic number.

121964980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121964980 is an abundant number, since it is smaller than the sum of its proper divisors (134161520).

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

121964980 is a wasteful number, since it uses less digits than its factorization.

121964980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098258 (or 6098256 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 121964980 is about 11043.7756224943. The cubic root of 121964980 is about 495.9201061483.

The spelling of 121964980 in words is "one hundred twenty-one million, nine hundred sixty-four thousand, nine hundred eighty".