121155514 has 8 divisors (see below), whose sum is σ = 191298240. Its totient is φ = 57389436.

The previous prime is 121155511. The next prime is 121155581. The reversal of 121155514 is 415551121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121155511) 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, 1594114 + ... + 1594189.

It is an arithmetic number, because the mean of its divisors is an integer number (23912280).

Almost surely, 2^121155514 is an apocalyptic number.

121155514 is a deficient number, since it is larger than the sum of its proper divisors (70142726).

121155514 is a wasteful number, since it uses less digits than its factorization.

121155514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188324.

The product of its digits is 1000, while the sum is 25.

The square root of 121155514 is about 11007.0665483588. The cubic root of 121155514 is about 494.8205505365.

The spelling of 121155514 in words is "one hundred twenty-one million, one hundred fifty-five thousand, five hundred fourteen".