18230605 has 8 divisors (see below), whose sum is σ = 22828032. Its totient is φ = 13950288.

The previous prime is 18230591. The next prime is 18230621. The reversal of 18230605 is 50603281.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18230605 - 2¹¹ = 18228557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18230605.

It is a congruent number.

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, 79149 + ... + 79378.

It is an arithmetic number, because the mean of its divisors is an integer number (2853504).

Almost surely, 2^18230605 is an apocalyptic number.

It is an amenable number.

18230605 is a deficient number, since it is larger than the sum of its proper divisors (4597427).

18230605 is a wasteful number, since it uses less digits than its factorization.

18230605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158555.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 18230605 is about 4269.7312561799. The cubic root of 18230605 is about 263.1885716483.

Adding to 18230605 its reverse (50603281), we get a palindrome (68833886).

The spelling of 18230605 in words is "eighteen million, two hundred thirty thousand, six hundred five".