18067147 has 8 divisors (see below), whose sum is σ = 20811776. Its totient is φ = 15363432.

The previous prime is 18067109. The next prime is 18067177. The reversal of 18067147 is 74176081.

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

It is a de Polignac number, because none of the positive numbers 2^k-18067147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18067177) 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, 9273 + ... + 11050.

It is an arithmetic number, because the mean of its divisors is an integer number (2601472).

Almost surely, 2^18067147 is an apocalyptic number.

18067147 is a deficient number, since it is larger than the sum of its proper divisors (2744629).

18067147 is a wasteful number, since it uses less digits than its factorization.

18067147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20457.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 18067147 is about 4250.5466707237. The cubic root of 18067147 is about 262.3996145254.

The spelling of 18067147 in words is "eighteen million, sixty-seven thousand, one hundred forty-seven".