18353147 has 8 divisors (see below), whose sum is σ = 19458432. Its totient is φ = 17280000.

The previous prime is 18353129. The next prime is 18353161. The reversal of 18353147 is 74135381.

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 18353147 - 2²² = 14158843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18353197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6854 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (2432304).

Almost surely, 2^18353147 is an apocalyptic number.

18353147 is a deficient number, since it is larger than the sum of its proper divisors (1105285).

18353147 is a wasteful number, since it uses less digits than its factorization.

18353147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16069.

The product of its digits is 10080, while the sum is 32.

The square root of 18353147 is about 4284.0573058726. The cubic root of 18353147 is about 263.7769532887.

The spelling of 18353147 in words is "eighteen million, three hundred fifty-three thousand, one hundred forty-seven".