121937844 has 24 divisors (see below), whose sum is σ = 325167808. Its totient is φ = 34839360.

The previous prime is 121937833. The next prime is 121937861. The reversal of 121937844 is 448739121.

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, 725737 + ... + 725904.

Almost surely, 2^121937844 is an apocalyptic number.

121937844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121937844 is an abundant number, since it is smaller than the sum of its proper divisors (203229964).

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

121937844 is a wasteful number, since it uses less digits than its factorization.

121937844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451655 (or 1451653 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 121937844 is about 11042.5469888065. The cubic root of 121937844 is about 495.8833243165.

The spelling of 121937844 in words is "one hundred twenty-one million, nine hundred thirty-seven thousand, eight hundred forty-four".