1347481 has 2 divisors, whose sum is σ = 1347482. Its totient is φ = 1347480.

The previous prime is 1347473. The next prime is 1347487. The reversal of 1347481 is 1847431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 13456 = 1155^2 + 116^2 .

It is an emirp because it is prime and its reverse (1847431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1347481 - 2³ = 1347473 is a prime.

It is a super-2 number, since 2×1347481² = 3631410090722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1347487) 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 as a sum of consecutive naturals, namely, 673740 + 673741.

It is an arithmetic number, because the mean of its divisors is an integer number (673741).

2^1347481 is an apocalyptic number.

It is an amenable number.

1347481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1347481 is an equidigital number, since it uses as much as digits as its factorization.

1347481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 1347481 is about 1160.8104927162. The cubic root of 1347481 is about 110.4521608606.

The spelling of 1347481 in words is "one million, three hundred forty-seven thousand, four hundred eighty-one".