121146280 has 32 divisors (see below), whose sum is σ = 286927200. Its totient is φ = 45907776.

The previous prime is 121146271. The next prime is 121146281. The reversal of 121146280 is 82641121.

It is a super-3 number, since 3×121146280³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121146281) 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 7 ways as a sum of consecutive naturals, for example, 78942 + ... + 80461.

It is an arithmetic number, because the mean of its divisors is an integer number (8966475).

Almost surely, 2^121146280 is an apocalyptic number.

121146280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121146280 is an abundant number, since it is smaller than the sum of its proper divisors (165780920).

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

121146280 is a wasteful number, since it uses less digits than its factorization.

121146280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159433 (or 159429 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 121146280 is about 11006.6470825588. The cubic root of 121146280 is about 494.8079791207.

The spelling of 121146280 in words is "one hundred twenty-one million, one hundred forty-six thousand, two hundred eighty".