1241143 has 4 divisors (see below), whose sum is σ = 1243960. Its totient is φ = 1238328.

The previous prime is 1241087. The next prime is 1241159. The reversal of 1241143 is 3411421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1241143 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 (1241173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588 + ... + 1681.

It is an arithmetic number, because the mean of its divisors is an integer number (310990).

2^1241143 is an apocalyptic number.

1241143 is a deficient number, since it is larger than the sum of its proper divisors (2817).

1241143 is an equidigital number, since it uses as much as digits as its factorization.

1241143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2816.

The product of its digits is 96, while the sum is 16.

The square root of 1241143 is about 1114.0659765023. The cubic root of 1241143 is about 107.4667068344.

Adding to 1241143 its reverse (3411421), we get a palindrome (4652564).

The spelling of 1241143 in words is "one million, two hundred forty-one thousand, one hundred forty-three".