121919460 has 48 divisors (see below), whose sum is σ = 367636416. Its totient is φ = 30010752.

The previous prime is 121919459. The next prime is 121919503. The reversal of 121919460 is 64919121.

It is a nialpdrome in base 15.

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, 77374 + ... + 78933.

It is an arithmetic number, because the mean of its divisors is an integer number (7659092).

Almost surely, 2^121919460 is an apocalyptic number.

121919460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121919460 is an abundant number, since it is smaller than the sum of its proper divisors (245716956).

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

121919460 is a wasteful number, since it uses less digits than its factorization.

121919460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156332 (or 156330 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 121919460 is about 11041.7145407767. The cubic root of 121919460 is about 495.8584023920.

The spelling of 121919460 in words is "one hundred twenty-one million, nine hundred nineteen thousand, four hundred sixty".