11801265 has 32 divisors (see below), whose sum is σ = 21897216. Its totient is φ = 5315520.

The previous prime is 11801263. The next prime is 11801269. The reversal of 11801265 is 56210811.

It is not a de Polignac number, because 11801265 - 2¹ = 11801263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11801263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6664 + ... + 8246.

It is an arithmetic number, because the mean of its divisors is an integer number (684288).

Almost surely, 2^11801265 is an apocalyptic number.

11801265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11801265 is a deficient number, since it is larger than the sum of its proper divisors (10095951).

11801265 is a wasteful number, since it uses less digits than its factorization.

11801265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 11801265 is about 3435.2969303977. The cubic root of 11801265 is about 227.6719466497.

The spelling of 11801265 in words is "eleven million, eight hundred one thousand, two hundred sixty-five".