1344166121 has 2 divisors, whose sum is σ = 1344166122. Its totient is φ = 1344166120.

The previous prime is 1344166003. The next prime is 1344166123. The reversal of 1344166121 is 1216614431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1322413225 + 21752896 = 36365^2 + 4664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344166121 - 2²² = 1339971817 is a prime.

It is a Sophie Germain prime.

Together with 1344166123, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1344166123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672083060 + 672083061.

It is an arithmetic number, because the mean of its divisors is an integer number (672083061).

Almost surely, 2^1344166121 is an apocalyptic number.

It is an amenable number.

1344166121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344166121 is an equidigital number, since it uses as much as digits as its factorization.

1344166121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 29.

The square root of 1344166121 is about 36662.8711505250. The cubic root of 1344166121 is about 1103.6151364613.

The spelling of 1344166121 in words is "one billion, three hundred forty-four million, one hundred sixty-six thousand, one hundred twenty-one".