11530005 has 16 divisors (see below), whose sum is σ = 18532800. Its totient is φ = 6121088.

The previous prime is 11529997. The next prime is 11530019. The reversal of 11530005 is 50003511.

It is a cyclic number.

It is not a de Polignac number, because 11530005 - 2³ = 11529997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846 + ... + 5144.

It is an arithmetic number, because the mean of its divisors is an integer number (1158300).

Almost surely, 2^11530005 is an apocalyptic number.

11530005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11530005 is a deficient number, since it is larger than the sum of its proper divisors (7002795).

11530005 is a wasteful number, since it uses less digits than its factorization.

11530005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 11530005 is about 3395.5861055199. The cubic root of 11530005 is about 225.9140104117.

Adding to 11530005 its reverse (50003511), we get a palindrome (61533516).

The spelling of 11530005 in words is "eleven million, five hundred thirty thousand, five".