18246157 has 8 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 17961504.

The previous prime is 18246149. The next prime is 18246161. The reversal of 18246157 is 75164281.

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 18246157 - 2³ = 18246149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18246127) 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, 38838 + ... + 39304.

It is an arithmetic number, because the mean of its divisors is an integer number (2316600).

Almost surely, 2^18246157 is an apocalyptic number.

It is an amenable number.

18246157 is a deficient number, since it is larger than the sum of its proper divisors (286643).

18246157 is an equidigital number, since it uses as much as digits as its factorization.

18246157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 13440, while the sum is 34.

The square root of 18246157 is about 4271.5520598490. The cubic root of 18246157 is about 263.2633898878.

The spelling of 18246157 in words is "eighteen million, two hundred forty-six thousand, one hundred fifty-seven".