1375198439 has 2 divisors, whose sum is σ = 1375198440. Its totient is φ = 1375198438.

The previous prime is 1375198421. The next prime is 1375198463. The reversal of 1375198439 is 9348915731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1375198439 - 2¹⁶ = 1375132903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375198039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687599219 + 687599220.

It is an arithmetic number, because the mean of its divisors is an integer number (687599220).

Almost surely, 2^1375198439 is an apocalyptic number.

1375198439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375198439 is an equidigital number, since it uses as much as digits as its factorization.

1375198439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 1375198439 is about 37083.6680898748. The cubic root of 1375198439 is about 1112.0435365763.

The spelling of 1375198439 in words is "one billion, three hundred seventy-five million, one hundred ninety-eight thousand, four hundred thirty-nine".