121460820 has 48 divisors (see below), whose sum is σ = 366253440. Its totient is φ = 29897856.

The previous prime is 121460813. The next prime is 121460837. The reversal of 121460820 is 28064121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77080 + ... + 78639.

It is an arithmetic number, because the mean of its divisors is an integer number (7630280).

Almost surely, 2^121460820 is an apocalyptic number.

121460820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121460820 is an abundant number, since it is smaller than the sum of its proper divisors (244792620).

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

121460820 is a wasteful number, since it uses less digits than its factorization.

121460820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155744 (or 155742 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 121460820 is about 11020.9264583337. The cubic root of 121460820 is about 495.2358431293.

The spelling of 121460820 in words is "one hundred twenty-one million, four hundred sixty thousand, eight hundred twenty".