13030639 has 4 divisors (see below), whose sum is σ = 13038424. Its totient is φ = 13022856.

The previous prime is 13030631. The next prime is 13030651. The reversal of 13030639 is 93603031.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13030639 - 2³ = 13030631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030631) 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, 237 + ... + 5110.

It is an arithmetic number, because the mean of its divisors is an integer number (3259606).

Almost surely, 2^13030639 is an apocalyptic number.

13030639 is a deficient number, since it is larger than the sum of its proper divisors (7785).

13030639 is an equidigital number, since it uses as much as digits as its factorization.

13030639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7784.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 13030639 is about 3609.7976397577. The cubic root of 13030639 is about 235.3180483099.

The spelling of 13030639 in words is "thirteen million, thirty thousand, six hundred thirty-nine".