121832280 has 48 divisors (see below), whose sum is σ = 395956080. Its totient is φ = 32488512.

The previous prime is 121832273. The next prime is 121832281. The reversal of 121832280 is 82238121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121832281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168852 + ... + 169571.

It is an arithmetic number, because the mean of its divisors is an integer number (8249085).

Almost surely, 2^121832280 is an apocalyptic number.

121832280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121832280 is an abundant number, since it is smaller than the sum of its proper divisors (274123800).

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

121832280 is a wasteful number, since it uses less digits than its factorization.

121832280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338440 (or 338433 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 121832280 is about 11037.7660783331. The cubic root of 121832280 is about 495.7401843394.

The spelling of 121832280 in words is "one hundred twenty-one million, eight hundred thirty-two thousand, two hundred eighty".