1113047 has 4 divisors (see below), whose sum is σ = 1198680. Its totient is φ = 1027416.

The previous prime is 1113043. The next prime is 1113059. The reversal of 1113047 is 7403111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7403111 = 47 ⋅157513.

It is not a de Polignac number, because 1113047 - 2² = 1113043 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 (1113043) 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, 42797 + ... + 42822.

It is an arithmetic number, because the mean of its divisors is an integer number (299670).

2^1113047 is an apocalyptic number.

1113047 is a deficient number, since it is larger than the sum of its proper divisors (85633).

1113047 is an equidigital number, since it uses as much as digits as its factorization.

1113047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85632.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1113047 is about 1055.0104264888. The cubic root of 1113047 is about 103.6345345331.

Adding to 1113047 its reverse (7403111), we get a palindrome (8516158).

Subtracting 1113047 from its reverse (7403111), we obtain a square (6290064 = 2508²).

The spelling of 1113047 in words is "one million, one hundred thirteen thousand, forty-seven".