1181343 has 8 divisors (see below), whose sum is σ = 1580800. Its totient is φ = 784728.

The previous prime is 1181329. The next prime is 1181407. The reversal of 1181343 is 3431811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1181343 - 2⁵ = 1181311 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 (1181443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618 + ... + 1656.

It is an arithmetic number, because the mean of its divisors is an integer number (197600).

2^1181343 is an apocalyptic number.

1181343 is a deficient number, since it is larger than the sum of its proper divisors (399457).

1181343 is a wasteful number, since it uses less digits than its factorization.

1181343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its digits is 288, while the sum is 21.

The square root of 1181343 is about 1086.8960391868. The cubic root of 1181343 is about 105.7122550829.

The spelling of 1181343 in words is "one million, one hundred eighty-one thousand, three hundred forty-three".