18134519 has 8 divisors (see below), whose sum is σ = 19984272. Its totient is φ = 16349760.

The previous prime is 18134513. The next prime is 18134521. The reversal of 18134519 is 91543181.

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 18134519 - 2⁴ = 18134503 is a prime.

It is a super-2 number, since 2×18134519² = 657721558722722, 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 (18134513) 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, 15662 + ... + 16779.

It is an arithmetic number, because the mean of its divisors is an integer number (2498034).

Almost surely, 2^18134519 is an apocalyptic number.

18134519 is a deficient number, since it is larger than the sum of its proper divisors (1849753).

18134519 is a wasteful number, since it uses less digits than its factorization.

18134519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32497.

The product of its digits is 4320, while the sum is 32.

The square root of 18134519 is about 4258.4643945911. The cubic root of 18134519 is about 262.7253707749.

The spelling of 18134519 in words is "eighteen million, one hundred thirty-four thousand, five hundred nineteen".