121545330 has 16 divisors (see below), whose sum is σ = 291708864. Its totient is φ = 32412080.

The previous prime is 121545329. The next prime is 121545343. The reversal of 121545330 is 33545121.

It is a self number, because there is not a number n which added to its sum of digits gives 121545330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025726 + ... + 2025785.

It is an arithmetic number, because the mean of its divisors is an integer number (18231804).

Almost surely, 2^121545330 is an apocalyptic number.

121545330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121545330 is an abundant number, since it is smaller than the sum of its proper divisors (170163534).

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

121545330 is a wasteful number, since it uses less digits than its factorization.

121545330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051521.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 121545330 is about 11024.7598613303. The cubic root of 121545330 is about 495.3506748864.

The spelling of 121545330 in words is "one hundred twenty-one million, five hundred forty-five thousand, three hundred thirty".