11992049 has 4 divisors (see below), whose sum is σ = 12284580. Its totient is φ = 11699520.

The previous prime is 11992037. The next prime is 11992061. The reversal of 11992049 is 94029911.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11992037) and next prime (11992061).

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 11607649 = 620^2 + 3407^2 .

It is a cyclic number.

It is not a de Polignac number, because 11992049 - 2¹² = 11987953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11992069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146204 + ... + 146285.

It is an arithmetic number, because the mean of its divisors is an integer number (3071145).

Almost surely, 2^11992049 is an apocalyptic number.

It is an amenable number.

11992049 is a deficient number, since it is larger than the sum of its proper divisors (292531).

11992049 is an equidigital number, since it uses as much as digits as its factorization.

11992049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292530.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 11992049 is about 3462.9537969774. The cubic root of 11992049 is about 228.8922727669.

The spelling of 11992049 in words is "eleven million, nine hundred ninety-two thousand, forty-nine".