18074207 has 4 divisors (see below), whose sum is σ = 18085320. Its totient is φ = 18063096.

The previous prime is 18074141. The next prime is 18074227. The reversal of 18074207 is 70247081.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18074207 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 18074207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18074227) 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, 2588 + ... + 6545.

It is an arithmetic number, because the mean of its divisors is an integer number (4521330).

Almost surely, 2^18074207 is an apocalyptic number.

18074207 is a deficient number, since it is larger than the sum of its proper divisors (11113).

18074207 is an equidigital number, since it uses as much as digits as its factorization.

18074207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11112.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 18074207 is about 4251.3770710206. The cubic root of 18074207 is about 262.4337888941.

It can be divided in two parts, 18074 and 207, that added together give a palindrome (18281).

The spelling of 18074207 in words is "eighteen million, seventy-four thousand, two hundred seven".