121480140 has 48 divisors (see below), whose sum is σ = 342074880. Its totient is φ = 32210880.

The previous prime is 121480127. The next prime is 121480169. The reversal of 121480140 is 41084121.

It is a happy number.

It is a super-3 number, since 3×121480140³ (a number of 25 digits) contains 333 as substring.

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, 5085 + ... + 16395.

It is an arithmetic number, because the mean of its divisors is an integer number (7126560).

Almost surely, 2^121480140 is an apocalyptic number.

121480140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121480140 is an abundant number, since it is smaller than the sum of its proper divisors (220594740).

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

121480140 is a wasteful number, since it uses less digits than its factorization.

121480140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11502 (or 11500 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 121480140 is about 11021.8029378138. The cubic root of 121480140 is about 495.2620997422.

The spelling of 121480140 in words is "one hundred twenty-one million, four hundred eighty thousand, one hundred forty".