121941540 has 72 divisors (see below), whose sum is σ = 422735040. Its totient is φ = 27872064.

The previous prime is 121941539. The next prime is 121941553. The reversal of 121941540 is 45149121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47130 + ... + 49649.

It is an arithmetic number, because the mean of its divisors is an integer number (5871320).

Almost surely, 2^121941540 is an apocalyptic number.

121941540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121941540 is an abundant number, since it is smaller than the sum of its proper divisors (300793500).

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

121941540 is a wasteful number, since it uses less digits than its factorization.

121941540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96801 (or 96796 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 121941540 is about 11042.7143402336. The cubic root of 121941540 is about 495.8883344271. Note that the first 3 decimals are identical.

The spelling of 121941540 in words is "one hundred twenty-one million, nine hundred forty-one thousand, five hundred forty".