11305819 has 12 divisors (see below), whose sum is σ = 13235400. Its totient is φ = 9629088.

The previous prime is 11305813. The next prime is 11305829. The reversal of 11305819 is 91850311.

11305819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11305819 - 2¹⁵ = 11273051 is a prime.

It is a super-2 number, since 2×11305819² = 255643086521522, 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 (11305813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8127 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (1102950).

Almost surely, 2^11305819 is an apocalyptic number.

11305819 is a deficient number, since it is larger than the sum of its proper divisors (1929581).

11305819 is a wasteful number, since it uses less digits than its factorization.

11305819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11305819 is about 3362.4126754460. The cubic root of 11305819 is about 224.4402150317.

The spelling of 11305819 in words is "eleven million, three hundred five thousand, eight hundred nineteen".