1081943 has 4 divisors (see below), whose sum is σ = 1129008. Its totient is φ = 1034880.

The previous prime is 1081939. The next prime is 1081979. The reversal of 1081943 is 3491801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1081943 - 2² = 1081939 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 (1081243) 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, 23498 + ... + 23543.

It is an arithmetic number, because the mean of its divisors is an integer number (282252).

2^1081943 is an apocalyptic number.

1081943 is a deficient number, since it is larger than the sum of its proper divisors (47065).

1081943 is an equidigital number, since it uses as much as digits as its factorization.

1081943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47064.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1081943 is about 1040.1648907745. The cubic root of 1081943 is about 102.6600474078.

The spelling of 1081943 in words is "one million, eighty-one thousand, nine hundred forty-three".