121409832 has 16 divisors (see below), whose sum is σ = 303524640. Its totient is φ = 40469936.

The previous prime is 121409809. The next prime is 121409861. The reversal of 121409832 is 238904121.

It is a self number, because there is not a number n which added to its sum of digits gives 121409832.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529348 + ... + 2529395.

It is an arithmetic number, because the mean of its divisors is an integer number (18970290).

Almost surely, 2^121409832 is an apocalyptic number.

121409832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121409832 is an abundant number, since it is smaller than the sum of its proper divisors (182114808).

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

121409832 is a wasteful number, since it uses less digits than its factorization.

121409832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058752 (or 5058748 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 121409832 is about 11018.6129798628. The cubic root of 121409832 is about 495.1665351297.

The spelling of 121409832 in words is "one hundred twenty-one million, four hundred nine thousand, eight hundred thirty-two".