18010265 has 32 divisors (see below), whose sum is σ = 27772416. Its totient is φ = 10897920.

The previous prime is 18010243. The next prime is 18010313. The reversal of 18010265 is 56201081.

It is not a de Polignac number, because 18010265 - 2¹⁴ = 17993881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18010265.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9605 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (867888).

Almost surely, 2^18010265 is an apocalyptic number.

It is an amenable number.

18010265 is a deficient number, since it is larger than the sum of its proper divisors (9762151).

18010265 is a wasteful number, since it uses less digits than its factorization.

18010265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 18010265 is about 4243.8502565477. The cubic root of 18010265 is about 262.1239483064.

The spelling of 18010265 in words is "eighteen million, ten thousand, two hundred sixty-five".