11800545 has 8 divisors (see below), whose sum is σ = 18880896. Its totient is φ = 6293616.

The previous prime is 11800519. The next prime is 11800559. The reversal of 11800545 is 54500811.

11800545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11800545 - 2⁷ = 11800417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393337 + ... + 393366.

It is an arithmetic number, because the mean of its divisors is an integer number (2360112).

Almost surely, 2^11800545 is an apocalyptic number.

11800545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11800545 is a deficient number, since it is larger than the sum of its proper divisors (7080351).

11800545 is an equidigital number, since it uses as much as digits as its factorization.

11800545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786711.

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 11800545 is about 3435.1921343645. The cubic root of 11800545 is about 227.6673164360.

The spelling of 11800545 in words is "eleven million, eight hundred thousand, five hundred forty-five".