1334596721 has 2 divisors, whose sum is σ = 1334596722. Its totient is φ = 1334596720.

The previous prime is 1334596649. The next prime is 1334596723. The reversal of 1334596721 is 1276954331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 982509025 + 352087696 = 31345^2 + 18764^2 .

It is an emirp because it is prime and its reverse (1276954331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1334596721 - 2¹⁴ = 1334580337 is a prime.

It is a super-2 number, since 2×1334596721² = 3562296815407903682, which contains 22 as substring.

Together with 1334596723, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1334596723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667298360 + 667298361.

It is an arithmetic number, because the mean of its divisors is an integer number (667298361).

Almost surely, 2^1334596721 is an apocalyptic number.

It is an amenable number.

1334596721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334596721 is an equidigital number, since it uses as much as digits as its factorization.

1334596721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 1334596721 is about 36532.1327190187. The cubic root of 1334596721 is about 1100.9899410702.

The spelling of 1334596721 in words is "one billion, three hundred thirty-four million, five hundred ninety-six thousand, seven hundred twenty-one".