121859340 has 48 divisors (see below), whose sum is σ = 341687808. Its totient is φ = 32449984.

The previous prime is 121859329. The next prime is 121859341. The reversal of 121859340 is 43958121.

It is not an unprimeable number, because it can be changed into a prime (121859341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76189 + ... + 77771.

It is an arithmetic number, because the mean of its divisors is an integer number (7118496).

Almost surely, 2^121859340 is an apocalyptic number.

121859340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121859340 is an abundant number, since it is smaller than the sum of its proper divisors (219828468).

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

121859340 is a wasteful number, since it uses less digits than its factorization.

121859340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 121859340 is about 11038.9918017906. The cubic root of 121859340 is about 495.7768843457.

The spelling of 121859340 in words is "one hundred twenty-one million, eight hundred fifty-nine thousand, three hundred forty".