30499 has 4 divisors (see below), whose sum is σ = 34864. Its totient is φ = 26136.

The previous prime is 30497. The next prime is 30509. The reversal of 30499 is 99403.

30499 = 40² + 41² + ... + 53².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99403 = 107 ⋅929.

It is a cyclic number.

It is not a de Polignac number, because 30499 - 2¹ = 30497 is a prime.

It is a Duffinian number.

30499 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (30491) 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, 2172 + ... + 2185.

It is an arithmetic number, because the mean of its divisors is an integer number (8716).

2³⁰⁴⁹⁹ is an apocalyptic number.

30499 is a deficient number, since it is larger than the sum of its proper divisors (4365).

30499 is an equidigital number, since it uses as much as digits as its factorization.

30499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 30499 is about 174.6396289506. The cubic root of 30499 is about 31.2436573794.

It can be divided in two parts, 30 and 499, that added together give a square (529 = 23²).

The spelling of 30499 in words is "thirty thousand, four hundred ninety-nine".