30539 has 2 divisors, whose sum is σ = 30540. Its totient is φ = 30538.

The previous prime is 30529. The next prime is 30553. The reversal of 30539 is 93503.

It is a weak prime.

It is an emirp because it is prime and its reverse (93503) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30539 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 30539.

It is not a weakly prime, because it can be changed into another prime (30509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15269 + 15270.

It is an arithmetic number, because the mean of its divisors is an integer number (15270).

2³⁰⁵³⁹ is an apocalyptic number.

30539 is a deficient number, since it is larger than the sum of its proper divisors (1).

30539 is an equidigital number, since it uses as much as digits as its factorization.

30539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 30539 is about 174.7541129702. The cubic root of 30539 is about 31.2573102898.

The spelling of 30539 in words is "thirty thousand, five hundred thirty-nine".