1140343 has 4 divisors (see below), whose sum is σ = 1207440. Its totient is φ = 1073248.

The previous prime is 1140341. The next prime is 1140353. The reversal of 1140343 is 3430411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3430411 = 43 ⋅79777.

It is a cyclic number.

It is not a de Polignac number, because 1140343 - 2¹ = 1140341 is a prime.

It is a Duffinian number.

1140343 is a lucky number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140341) 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, 33523 + ... + 33556.

It is an arithmetic number, because the mean of its divisors is an integer number (301860).

2^1140343 is an apocalyptic number.

1140343 is a deficient number, since it is larger than the sum of its proper divisors (67097).

1140343 is an equidigital number, since it uses as much as digits as its factorization.

1140343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67096.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1140343 is about 1067.8684375896. The cubic root of 1140343 is about 104.4748686161.

Adding to 1140343 its reverse (3430411), we get a palindrome (4570754).

The spelling of 1140343 in words is "one million, one hundred forty thousand, three hundred forty-three".