121180040 has 16 divisors (see below), whose sum is σ = 272655180. Its totient is φ = 48472000.

The previous prime is 121180027. The next prime is 121180057. The reversal of 121180040 is 40081121.

It can be written as a sum of positive squares in 2 ways, for example, as 101163364 + 20016676 = 10058^2 + 4474^2 .

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 3 ways as a sum of consecutive naturals, for example, 1514711 + ... + 1514790.

Almost surely, 2^121180040 is an apocalyptic number.

121180040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121180040 is an abundant number, since it is smaller than the sum of its proper divisors (151475140).

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

121180040 is a wasteful number, since it uses less digits than its factorization.

121180040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029512 (or 3029508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 121180040 is about 11008.1805944488. The cubic root of 121180040 is about 494.8539377912.

The spelling of 121180040 in words is "one hundred twenty-one million, one hundred eighty thousand, forty".