121845850 has 72 divisors (see below), whose sum is σ = 270287388. Its totient is φ = 40723200.

The previous prime is 121845811. The next prime is 121845877. The reversal of 121845850 is 58548121.

It can be written as a sum of positive squares in 6 ways, for example, as 603729 + 121242121 = 777^2 + 11011^2 .

It is a super-2 number, since 2×121845850² = 29692822324445000, which contains 22 as substring.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 99844 + ... + 101056.

Almost surely, 2^121845850 is an apocalyptic number.

121845850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121845850 is an abundant number, since it is smaller than the sum of its proper divisors (148441538).

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

121845850 is a wasteful number, since it uses less digits than its factorization.

121845850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 121845850 is about 11038.3807689353. The cubic root of 121845850 is about 495.7585892716.

The spelling of 121845850 in words is "one hundred twenty-one million, eight hundred forty-five thousand, eight hundred fifty".