18014851 has 4 divisors (see below), whose sum is σ = 18032512. Its totient is φ = 17997192.

The previous prime is 18014839. The next prime is 18014863. The reversal of 18014851 is 15841081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15841081 = 1583 ⋅10007.

It is an interprime number because it is at equal distance from previous prime (18014839) and next prime (18014863).

It is a cyclic number.

It is not a de Polignac number, because 18014851 - 2⁷ = 18014723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18014891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7200 + ... + 9373.

It is an arithmetic number, because the mean of its divisors is an integer number (4508128).

Almost surely, 2^18014851 is an apocalyptic number.

18014851 is the 2451-st hex number.

18014851 is a deficient number, since it is larger than the sum of its proper divisors (17661).

18014851 is a wasteful number, since it uses less digits than its factorization.

18014851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17660.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 18014851 is about 4244.3905333982. The cubic root of 18014851 is about 262.1461948495.

The spelling of 18014851 in words is "eighteen million, fourteen thousand, eight hundred fifty-one".