121525265 has 16 divisors (see below), whose sum is σ = 154862928. Its totient is φ = 91232256.

The previous prime is 121525247. The next prime is 121525291. The reversal of 121525265 is 562525121.

It can be written as a sum of positive squares in 8 ways, for example, as 327184 + 121198081 = 572^2 + 11009^2 .

It is a cyclic number.

It is not a de Polignac number, because 121525265 - 2²⁰ = 120476689 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 15 ways as a sum of consecutive naturals, for example, 29789 + ... + 33621.

It is an arithmetic number, because the mean of its divisors is an integer number (9678933).

Almost surely, 2^121525265 is an apocalyptic number.

It is an amenable number.

121525265 is a deficient number, since it is larger than the sum of its proper divisors (33337663).

121525265 is a wasteful number, since it uses less digits than its factorization.

121525265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228.

The product of its digits is 6000, while the sum is 29.

The square root of 121525265 is about 11023.8498266259. The cubic root of 121525265 is about 495.3234154865.

The spelling of 121525265 in words is "one hundred twenty-one million, five hundred twenty-five thousand, two hundred sixty-five".