13030819 has 4 divisors (see below), whose sum is σ = 13451200. Its totient is φ = 12610440.

The previous prime is 13030793. The next prime is 13030877. The reversal of 13030819 is 91803031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13030819 - 2⁷ = 13030691 is a prime.

It is a super-2 number, since 2×13030819² = 339604487621522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13030793 and 13030802.

It is not an unprimeable number, because it can be changed into a prime (13030319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210144 + ... + 210205.

It is an arithmetic number, because the mean of its divisors is an integer number (3362800).

Almost surely, 2^13030819 is an apocalyptic number.

13030819 is a deficient number, since it is larger than the sum of its proper divisors (420381).

13030819 is an equidigital number, since it uses as much as digits as its factorization.

13030819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420380.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 13030819 is about 3609.8225718171. The cubic root of 13030819 is about 235.3191318345.

The spelling of 13030819 in words is "thirteen million, thirty thousand, eight hundred nineteen".