1334040647 has 2 divisors, whose sum is σ = 1334040648. Its totient is φ = 1334040646.

The previous prime is 1334040619. The next prime is 1334040667. The reversal of 1334040647 is 7460404331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1334040647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1334040667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667020323 + 667020324.

It is an arithmetic number, because the mean of its divisors is an integer number (667020324).

Almost surely, 2^1334040647 is an apocalyptic number.

1334040647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334040647 is an equidigital number, since it uses as much as digits as its factorization.

1334040647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 1334040647 is about 36524.5211741372. The cubic root of 1334040647 is about 1100.8370067489.

Adding to 1334040647 its reverse (7460404331), we get a palindrome (8794444978).

The spelling of 1334040647 in words is "one billion, three hundred thirty-four million, forty thousand, six hundred forty-seven".