18051045 has 16 divisors (see below), whose sum is σ = 30402240. Its totient is φ = 9120384.

The previous prime is 18051041. The next prime is 18051071. The reversal of 18051045 is 54015081.

It is not a de Polignac number, because 18051045 - 2² = 18051041 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31384 + ... + 31953.

It is an arithmetic number, because the mean of its divisors is an integer number (1900140).

Almost surely, 2^18051045 is an apocalyptic number.

18051045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18051045 is a deficient number, since it is larger than the sum of its proper divisors (12351195).

18051045 is a wasteful number, since it uses less digits than its factorization.

18051045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63364.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 18051045 is about 4248.6521392084. The cubic root of 18051045 is about 262.3216384729.

It can be divided in two parts, 1805 and 1045, that added together give a triangular number (2850 = T₇₅).

The spelling of 18051045 in words is "eighteen million, fifty-one thousand, forty-five".