11145047 has 8 divisors (see below), whose sum is σ = 11919312. Its totient is φ = 10384000.

The previous prime is 11145031. The next prime is 11145049. The reversal of 11145047 is 74054111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11145047 - 2⁴ = 11145031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11145049) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1529 + ... + 4962.

It is an arithmetic number, because the mean of its divisors is an integer number (1489914).

Almost surely, 2^11145047 is an apocalyptic number.

11145047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11145047 is a deficient number, since it is larger than the sum of its proper divisors (774265).

11145047 is a wasteful number, since it uses less digits than its factorization.

11145047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6609.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 11145047 is about 3338.4198357906. The cubic root of 11145047 is about 223.3712638232.

Adding to 11145047 its reverse (74054111), we get a palindrome (85199158).

The spelling of 11145047 in words is "eleven million, one hundred forty-five thousand, forty-seven".