18010545 has 16 divisors (see below), whose sum is σ = 32933760. Its totient is φ = 8233344.

The previous prime is 18010501. The next prime is 18010547. The reversal of 18010545 is 54501081.

It is not a de Polignac number, because 18010545 - 2⁶ = 18010481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18010547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85660 + ... + 85869.

It is an arithmetic number, because the mean of its divisors is an integer number (2058360).

Almost surely, 2^18010545 is an apocalyptic number.

18010545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18010545 is a deficient number, since it is larger than the sum of its proper divisors (14923215).

18010545 is a wasteful number, since it uses less digits than its factorization.

18010545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171544.

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

The square root of 18010545 is about 4243.8832453309. The cubic root of 18010545 is about 262.1253066859.

The spelling of 18010545 in words is "eighteen million, ten thousand, five hundred forty-five".