1334140021 has 2 divisors, whose sum is σ = 1334140022. Its totient is φ = 1334140020.

The previous prime is 1334140013. The next prime is 1334140033. The reversal of 1334140021 is 1200414331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081488996 + 252651025 = 32886^2 + 15895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1334140021 - 2³ = 1334140013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1334140061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667070010 + 667070011.

It is an arithmetic number, because the mean of its divisors is an integer number (667070011).

Almost surely, 2^1334140021 is an apocalyptic number.

It is an amenable number.

1334140021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334140021 is an equidigital number, since it uses as much as digits as its factorization.

1334140021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1334140021 is about 36525.8815225588. The cubic root of 1334140021 is about 1100.8643402141.

Adding to 1334140021 its reverse (1200414331), we get a palindrome (2534554352).

The spelling of 1334140021 in words is "one billion, three hundred thirty-four million, one hundred forty thousand, twenty-one".