18261713 has 8 divisors (see below), whose sum is σ = 18744000. Its totient is φ = 17782128.

The previous prime is 18261673. The next prime is 18261731. The reversal of 18261713 is 31716281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18261713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18261773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25403 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (2343000).

Almost surely, 2^18261713 is an apocalyptic number.

It is an amenable number.

18261713 is a deficient number, since it is larger than the sum of its proper divisors (482287).

18261713 is an equidigital number, since it uses as much as digits as its factorization.

18261713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its digits is 2016, while the sum is 29.

The square root of 18261713 is about 4273.3725557222. The cubic root of 18261713 is about 263.3381848525.

Adding to 18261713 its reverse (31716281), we get a palindrome (49977994).

The spelling of 18261713 in words is "eighteen million, two hundred sixty-one thousand, seven hundred thirteen".