121274065 has 16 divisors (see below), whose sum is σ = 160079616. Its totient is φ = 88194480.

The previous prime is 121274057. The next prime is 121274089. The reversal of 121274065 is 560472121.

It is not a de Polignac number, because 121274065 - 2³ = 121274057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2457 + ... + 15766.

It is an arithmetic number, because the mean of its divisors is an integer number (10004976).

Almost surely, 2^121274065 is an apocalyptic number.

It is an amenable number.

121274065 is a deficient number, since it is larger than the sum of its proper divisors (38805551).

121274065 is an equidigital number, since it uses as much as digits as its factorization.

121274065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18261 (or 18239 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 121274065 is about 11012.4504539181. The cubic root of 121274065 is about 494.9818923417.

The spelling of 121274065 in words is "one hundred twenty-one million, two hundred seventy-four thousand, sixty-five".