1374342643 has 2 divisors, whose sum is σ = 1374342644. Its totient is φ = 1374342642.

The previous prime is 1374342631. The next prime is 1374342647. The reversal of 1374342643 is 3462434731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1374342643 - 2¹⁷ = 1374211571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1374342647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687171321 + 687171322.

It is an arithmetic number, because the mean of its divisors is an integer number (687171322).

Almost surely, 2^1374342643 is an apocalyptic number.

1374342643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1374342643 is an equidigital number, since it uses as much as digits as its factorization.

1374342643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 37.

The square root of 1374342643 is about 37072.1275758487. The cubic root of 1374342643 is about 1111.8128111129.

The spelling of 1374342643 in words is "one billion, three hundred seventy-four million, three hundred forty-two thousand, six hundred forty-three".