121619180 has 12 divisors (see below), whose sum is σ = 255400320. Its totient is φ = 48647664.

The previous prime is 121619159. The next prime is 121619189. The reversal of 121619180 is 81916121.

It is not an unprimeable number, because it can be changed into a prime (121619189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3040460 + ... + 3040499.

It is an arithmetic number, because the mean of its divisors is an integer number (21283360).

Almost surely, 2^121619180 is an apocalyptic number.

121619180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121619180 is an abundant number, since it is smaller than the sum of its proper divisors (133781140).

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

121619180 is a wasteful number, since it uses less digits than its factorization.

121619180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080968 (or 6080966 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 121619180 is about 11028.1086320366. The cubic root of 121619180 is about 495.4509783176.

The spelling of 121619180 in words is "one hundred twenty-one million, six hundred nineteen thousand, one hundred eighty".