11545999 has 2 divisors, whose sum is σ = 11546000. Its totient is φ = 11545998.

The previous prime is 11545979. The next prime is 11546011. The reversal of 11545999 is 99954511.

11545999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (99954511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11545999 - 2⁷ = 11545871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11545979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772999 + 5773000.

It is an arithmetic number, because the mean of its divisors is an integer number (5773000).

Almost surely, 2^11545999 is an apocalyptic number.

11545999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11545999 is an equidigital number, since it uses as much as digits as its factorization.

11545999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 43.

The square root of 11545999 is about 3397.9404055987. The cubic root of 11545999 is about 226.0184220240.

It can be divided in two parts, 11545 and 999, that added together give a square (12544 = 112²).

The spelling of 11545999 in words is "eleven million, five hundred forty-five thousand, nine hundred ninety-nine".