18546145 has 8 divisors (see below), whose sum is σ = 22798440. Its totient is φ = 14474880.

The previous prime is 18546107. The next prime is 18546163. The reversal of 18546145 is 54164581.

It can be written as a sum of positive squares in 4 ways, for example, as 304704 + 18241441 = 552^2 + 4271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18546145 - 2¹⁷ = 18415073 is a prime.

It is a super-2 number, since 2×18546145² = 687918988722050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18546145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45030 + ... + 45439.

It is an arithmetic number, because the mean of its divisors is an integer number (2849805).

Almost surely, 2^18546145 is an apocalyptic number.

It is an amenable number.

18546145 is a deficient number, since it is larger than the sum of its proper divisors (4252295).

18546145 is an equidigital number, since it uses as much as digits as its factorization.

18546145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90515.

The product of its digits is 19200, while the sum is 34.

The square root of 18546145 is about 4306.5235399333. The cubic root of 18546145 is about 264.6983395430.

The spelling of 18546145 in words is "eighteen million, five hundred forty-six thousand, one hundred forty-five".