1113143 has 4 divisors (see below), whose sum is σ = 1178640. Its totient is φ = 1047648.

The previous prime is 1113137. The next prime is 1113149. The reversal of 1113143 is 3413111.

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 (1113137) and next prime (1113149).

It is a cyclic number.

It is not a de Polignac number, because 1113143 - 2²⁰ = 64567 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 (1113149) 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, 32723 + ... + 32756.

It is an arithmetic number, because the mean of its divisors is an integer number (294660).

2^1113143 is an apocalyptic number.

1113143 is a deficient number, since it is larger than the sum of its proper divisors (65497).

1113143 is an equidigital number, since it uses as much as digits as its factorization.

1113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65496.

The product of its digits is 36, while the sum is 14.

The square root of 1113143 is about 1055.0559226885. The cubic root of 1113143 is about 103.6375139309.

Adding to 1113143 its reverse (3413111), we get a palindrome (4526254).

Subtracting 1113143 from its reverse (3413111), we obtain a cube (2299968 = 132³).

The spelling of 1113143 in words is "one million, one hundred thirteen thousand, one hundred forty-three".