11140047 has 6 divisors (see below), whose sum is σ = 16091192. Its totient is φ = 7426692.

The previous prime is 11140043. The next prime is 11140079. The reversal of 11140047 is 74004111.

It is not a de Polignac number, because 11140047 - 2² = 11140043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11140043) 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 5 ways as a sum of consecutive naturals, for example, 618883 + ... + 618900.

Almost surely, 2^11140047 is an apocalyptic number.

11140047 is a deficient number, since it is larger than the sum of its proper divisors (4951145).

11140047 is a wasteful number, since it uses less digits than its factorization.

11140047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237789 (or 1237786 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 11140047 is about 3337.6708945011. The cubic root of 11140047 is about 223.3378551596.

Adding to 11140047 its reverse (74004111), we get a palindrome (85144158).

The spelling of 11140047 in words is "eleven million, one hundred forty thousand, forty-seven".