11959499 has 4 divisors (see below), whose sum is σ = 11991936. Its totient is φ = 11927064.

The previous prime is 11959489. The next prime is 11959543. The reversal of 11959499 is 99495911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99495911 = 191 ⋅520921.

It is a cyclic number.

It is not a de Polignac number, because 11959499 - 2⁸ = 11959243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11959439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15659 + ... + 16404.

It is an arithmetic number, because the mean of its divisors is an integer number (2997984).

Almost surely, 2^11959499 is an apocalyptic number.

11959499 is a deficient number, since it is larger than the sum of its proper divisors (32437).

11959499 is an equidigital number, since it uses as much as digits as its factorization.

11959499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32436.

The product of its digits is 131220, while the sum is 47.

The square root of 11959499 is about 3458.2508584543. The cubic root of 11959499 is about 228.6849911319.

The spelling of 11959499 in words is "eleven million, nine hundred fifty-nine thousand, four hundred ninety-nine".