12256065 has 48 divisors (see below), whose sum is σ = 23154768. Its totient is φ = 5971968.

The previous prime is 12256051. The next prime is 12256081. The reversal of 12256065 is 56065221.

It can be written as a sum of positive squares in 8 ways, for example, as 82944 + 12173121 = 288^2 + 3489^2 .

It is not a de Polignac number, because 12256065 - 2⁶ = 12256001 is a prime.

It is a super-2 number, since 2×12256065² = 300422258568450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28089 + ... + 28521.

It is an arithmetic number, because the mean of its divisors is an integer number (482391).

Almost surely, 2^12256065 is an apocalyptic number.

12256065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12256065 is a deficient number, since it is larger than the sum of its proper divisors (10898703).

12256065 is a wasteful number, since it uses less digits than its factorization.

12256065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 12256065 is about 3500.8663213553. The cubic root of 12256065 is about 230.5598522664.

The spelling of 12256065 in words is "twelve million, two hundred fifty-six thousand, sixty-five".