1318043 has 4 divisors (see below), whose sum is σ = 1322568. Its totient is φ = 1313520.

The previous prime is 1318039. The next prime is 1318063. The reversal of 1318043 is 3408131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3408131 = 61 ⋅55871.

It is a cyclic number.

It is not a de Polignac number, because 1318043 - 2² = 1318039 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318003) 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, 1793 + ... + 2418.

It is an arithmetic number, because the mean of its divisors is an integer number (330642).

2^1318043 is an apocalyptic number.

1318043 is a deficient number, since it is larger than the sum of its proper divisors (4525).

1318043 is an equidigital number, since it uses as much as digits as its factorization.

1318043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1318043 is about 1148.0605384735. The cubic root of 1318043 is about 109.6418932944.

The spelling of 1318043 in words is "one million, three hundred eighteen thousand, forty-three".