11442985 has 4 divisors (see below), whose sum is σ = 13731588. Its totient is φ = 9154384.

The previous prime is 11442979. The next prime is 11443009. The reversal of 11442985 is 58924411.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8690704 + 2752281 = 2948^2 + 1659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11442985 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11442985.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1144294 + ... + 1144303.

It is an arithmetic number, because the mean of its divisors is an integer number (3432897).

Almost surely, 2^11442985 is an apocalyptic number.

It is an amenable number.

11442985 is a deficient number, since it is larger than the sum of its proper divisors (2288603).

11442985 is an equidigital number, since it uses as much as digits as its factorization.

11442985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288602.

The product of its digits is 11520, while the sum is 34.

The square root of 11442985 is about 3382.7481431523. The cubic root of 11442985 is about 225.3442302909.

The spelling of 11442985 in words is "eleven million, four hundred forty-two thousand, nine hundred eighty-five".