121275075 has 24 divisors (see below), whose sum is σ = 200844288. Its totient is φ = 64571680.

The previous prime is 121275061. The next prime is 121275083. The reversal of 121275075 is 570572121.

It is not a de Polignac number, because 121275075 - 2⁷ = 121274947 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 65614 + ... + 67436.

It is an arithmetic number, because the mean of its divisors is an integer number (8368512).

Almost surely, 2^121275075 is an apocalyptic number.

121275075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121275075 is a deficient number, since it is larger than the sum of its proper divisors (79569213).

121275075 is a wasteful number, since it uses less digits than its factorization.

121275075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 121275075 is about 11012.4963110096. The cubic root of 121275075 is about 494.9832664479.

The spelling of 121275075 in words is "one hundred twenty-one million, two hundred seventy-five thousand, seventy-five".