18144935 has 4 divisors (see below), whose sum is σ = 21773928. Its totient is φ = 14515944.

The previous prime is 18144901. The next prime is 18144949. The reversal of 18144935 is 53944181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18144935 - 2¹⁸ = 17882791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18144895 and 18144904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814489 + ... + 1814498.

It is an arithmetic number, because the mean of its divisors is an integer number (5443482).

Almost surely, 2^18144935 is an apocalyptic number.

18144935 is a deficient number, since it is larger than the sum of its proper divisors (3628993).

18144935 is an equidigital number, since it uses as much as digits as its factorization.

18144935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628992.

The product of its digits is 17280, while the sum is 35.

The square root of 18144935 is about 4259.6871950884. The cubic root of 18144935 is about 262.7756620397.

The spelling of 18144935 in words is "eighteen million, one hundred forty-four thousand, nine hundred thirty-five".