121977364 has 24 divisors (see below), whose sum is σ = 221817960. Its totient is φ = 58619904.

The previous prime is 121977311. The next prime is 121977377. The reversal of 121977364 is 463779121.

It can be written as a sum of positive squares in 4 ways, for example, as 2250000 + 119727364 = 1500^2 + 10942^2 .

It is a super-3 number, since 3×121977364³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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, 24772 + ... + 29284.

It is an arithmetic number, because the mean of its divisors is an integer number (9242415).

Almost surely, 2^121977364 is an apocalyptic number.

It is an amenable number.

121977364 is a deficient number, since it is larger than the sum of its proper divisors (99840596).

121977364 is a wasteful number, since it uses less digits than its factorization.

121977364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779 (or 4777 counting only the distinct ones).

The product of its digits is 63504, while the sum is 40.

The square root of 121977364 is about 11044.3362860789. The cubic root of 121977364 is about 495.9368903836.

The spelling of 121977364 in words is "one hundred twenty-one million, nine hundred seventy-seven thousand, three hundred sixty-four".