11530845 has 24 divisors (see below), whose sum is σ = 21163896. Its totient is φ = 5787648.

The previous prime is 11530829. The next prime is 11530873. The reversal of 11530845 is 54803511.

It can be written as a sum of positive squares in 4 ways, for example, as 2277081 + 9253764 = 1509^2 + 3042^2 .

It is not a de Polignac number, because 11530845 - 2⁴ = 11530829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6772 + ... + 8301.

It is an arithmetic number, because the mean of its divisors is an integer number (881829).

Almost surely, 2^11530845 is an apocalyptic number.

11530845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11530845 is a deficient number, since it is larger than the sum of its proper divisors (9633051).

11530845 is a wasteful number, since it uses less digits than its factorization.

11530845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101 (or 15098 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 11530845 is about 3395.7097932538. The cubic root of 11530845 is about 225.9194964793.

The spelling of 11530845 in words is "eleven million, five hundred thirty thousand, eight hundred forty-five".