18470519 has 2 divisors, whose sum is σ = 18470520. Its totient is φ = 18470518.

The previous prime is 18470509. The next prime is 18470537. The reversal of 18470519 is 91507481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18470519 - 2⁴ = 18470503 is a prime.

It is a super-2 number, since 2×18470519² = 682320144258722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18470509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9235259 + 9235260.

It is an arithmetic number, because the mean of its divisors is an integer number (9235260).

Almost surely, 2^18470519 is an apocalyptic number.

18470519 is a deficient number, since it is larger than the sum of its proper divisors (1).

18470519 is an equidigital number, since it uses as much as digits as its factorization.

18470519 is an odious number, because the sum of its binary digits is odd.

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

The square root of 18470519 is about 4297.7341704670. The cubic root of 18470519 is about 264.3380607571.

The spelling of 18470519 in words is "eighteen million, four hundred seventy thousand, five hundred nineteen".