1343811 has 16 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 758208.

The previous prime is 1343801. The next prime is 1343863. The reversal of 1343811 is 1183431.

It is not a de Polignac number, because 1343811 - 2⁶ = 1343747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510 + ... + 2228.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1343811 is an apocalyptic number.

1343811 is a deficient number, since it is larger than the sum of its proper divisors (729789).

1343811 is an equidigital number, since it uses as much as digits as its factorization.

1343811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

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

The square root of 1343811 is about 1159.2286228350. The cubic root of 1343811 is about 110.3517938299.

The spelling of 1343811 in words is "one million, three hundred forty-three thousand, eight hundred eleven".