30519 has 6 divisors (see below), whose sum is σ = 44096. Its totient is φ = 20340.

The previous prime is 30517. The next prime is 30529. The reversal of 30519 is 91503.

It is not a de Polignac number, because 30519 - 2¹ = 30517 is a prime.

It is a super-2 number, since 2×30519² = 1862818722, 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 (30517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1687 + ... + 1704.

2³⁰⁵¹⁹ is an apocalyptic number.

30519 is a deficient number, since it is larger than the sum of its proper divisors (13577).

30519 is a wasteful number, since it uses less digits than its factorization.

30519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397 (or 3394 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 30519 is about 174.6968803385. The cubic root of 30519 is about 31.2504853258.

It can be divided in two parts, 305 and 19, that added together give a square (324 = 18²).

The spelling of 30519 in words is "thirty thousand, five hundred nineteen".