121282265 has 8 divisors (see below), whose sum is σ = 156734088. Its totient is φ = 89562240.

The previous prime is 121282237. The next prime is 121282277. The reversal of 121282265 is 562282121.

It can be written as a sum of positive squares in 4 ways, for example, as 12559936 + 108722329 = 3544^2 + 10427^2 .

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

It is not a de Polignac number, because 121282265 - 2⁶ = 121282201 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 7 ways as a sum of consecutive naturals, for example, 932876 + ... + 933005.

It is an arithmetic number, because the mean of its divisors is an integer number (19591761).

Almost surely, 2^121282265 is an apocalyptic number.

It is an amenable number.

121282265 is a deficient number, since it is larger than the sum of its proper divisors (35451823).

121282265 is a wasteful number, since it uses less digits than its factorization.

121282265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865899.

The product of its digits is 3840, while the sum is 29.

The square root of 121282265 is about 11012.8227534997. The cubic root of 121282265 is about 494.9930482308.

The spelling of 121282265 in words is "one hundred twenty-one million, two hundred eighty-two thousand, two hundred sixty-five".