18297129 has 8 divisors (see below), whose sum is σ = 25055680. Its totient is φ = 11868336.

The previous prime is 18297127. The next prime is 18297131. The reversal of 18297129 is 92179281.

It is an interprime number because it is at equal distance from previous prime (18297127) and next prime (18297131).

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

It is not a de Polignac number, because 18297129 - 2¹ = 18297127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18297127) 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 7 ways as a sum of consecutive naturals, for example, 82309 + ... + 82530.

It is an arithmetic number, because the mean of its divisors is an integer number (3131960).

Almost surely, 2^18297129 is an apocalyptic number.

It is an amenable number.

18297129 is a deficient number, since it is larger than the sum of its proper divisors (6758551).

18297129 is a wasteful number, since it uses less digits than its factorization.

18297129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164879.

The product of its digits is 18144, while the sum is 39.

The square root of 18297129 is about 4277.5143483102. The cubic root of 18297129 is about 263.5083105973.

The spelling of 18297129 in words is "eighteen million, two hundred ninety-seven thousand, one hundred twenty-nine".