121934520 has 48 divisors (see below), whose sum is σ = 396288360. Its totient is φ = 32515776.

The previous prime is 121934509. The next prime is 121934537. The reversal of 121934520 is 25439121.

121934520 is a `hidden beast` number, since 121 + 93 + 452 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168994 + ... + 169713.

Almost surely, 2^121934520 is an apocalyptic number.

121934520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121934520 is an abundant number, since it is smaller than the sum of its proper divisors (274353840).

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

121934520 is a wasteful number, since it uses less digits than its factorization.

121934520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338724 (or 338717 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 121934520 is about 11042.3964790257. The cubic root of 121934520 is about 495.8788183838.

The spelling of 121934520 in words is "one hundred twenty-one million, nine hundred thirty-four thousand, five hundred twenty".