18054719 has 8 divisors (see below), whose sum is σ = 18800880. Its totient is φ = 17323200.

The previous prime is 18054677. The next prime is 18054727. The reversal of 18054719 is 91745081.

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 18054719 - 2¹² = 18050623 is a prime.

It is a super-2 number, since 2×18054719² = 651945756337922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18054019) 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, 1109 + ... + 6110.

It is an arithmetic number, because the mean of its divisors is an integer number (2350110).

Almost surely, 2^18054719 is an apocalyptic number.

18054719 is a deficient number, since it is larger than the sum of its proper divisors (746161).

18054719 is an equidigital number, since it uses as much as digits as its factorization.

18054719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 18054719 is about 4249.0844896283. The cubic root of 18054719 is about 262.3394343830.

The spelling of 18054719 in words is "eighteen million, fifty-four thousand, seven hundred nineteen".