1344555671 has 2 divisors, whose sum is σ = 1344555672. Its totient is φ = 1344555670.

The previous prime is 1344555631. The next prime is 1344555679. The reversal of 1344555671 is 1765554431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1344555671 - 2¹⁰ = 1344554647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344555679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672277835 + 672277836.

It is an arithmetic number, because the mean of its divisors is an integer number (672277836).

Almost surely, 2^1344555671 is an apocalyptic number.

1344555671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344555671 is an equidigital number, since it uses as much as digits as its factorization.

1344555671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 41.

The square root of 1344555671 is about 36668.1833610557. The cubic root of 1344555671 is about 1103.7217383031.

The spelling of 1344555671 in words is "one billion, three hundred forty-four million, five hundred fifty-five thousand, six hundred seventy-one".