18125867 has 8 divisors (see below), whose sum is σ = 19152960. Its totient is φ = 17106120.

The previous prime is 18125857. The next prime is 18125897. The reversal of 18125867 is 76852181.

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 18125867 - 2¹² = 18121771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18125867.

It is not an unprimeable number, because it can be changed into a prime (18125857) 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, 3692 + ... + 7062.

It is an arithmetic number, because the mean of its divisors is an integer number (2394120).

Almost surely, 2^18125867 is an apocalyptic number.

18125867 is a deficient number, since it is larger than the sum of its proper divisors (1027093).

18125867 is a wasteful number, since it uses less digits than its factorization.

18125867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673.

The product of its digits is 26880, while the sum is 38.

The square root of 18125867 is about 4257.4484142500. The cubic root of 18125867 is about 262.6835819355.

The spelling of 18125867 in words is "eighteen million, one hundred twenty-five thousand, eight hundred sixty-seven".