1343491 has 2 divisors, whose sum is σ = 1343492. Its totient is φ = 1343490.

The previous prime is 1343479. The next prime is 1343501. The reversal of 1343491 is 1943431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1343491 - 2¹¹ = 1341443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1343431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671745 + 671746.

It is an arithmetic number, because the mean of its divisors is an integer number (671746).

2^1343491 is an apocalyptic number.

1343491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343491 is an equidigital number, since it uses as much as digits as its factorization.

1343491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 1343491 is about 1159.0905918003. The cubic root of 1343491 is about 110.3430338239.

The spelling of 1343491 in words is "one million, three hundred forty-three thousand, four hundred ninety-one".