1909048343 has 2 divisors, whose sum is σ = 1909048344. Its totient is φ = 1909048342.

The previous prime is 1909048327. The next prime is 1909048387. The reversal of 1909048343 is 3438409091.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1909048343 - 2⁴ = 1909048327 is a prime.

It is a super-2 number, since 2×1909048343² = 7288931151822091298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1909048343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1909048543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954524171 + 954524172.

It is an arithmetic number, because the mean of its divisors is an integer number (954524172).

Almost surely, 2^1909048343 is an apocalyptic number.

1909048343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1909048343 is an equidigital number, since it uses as much as digits as its factorization.

1909048343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1909048343 is about 43692.6577699274. The cubic root of 1909048343 is about 1240.5253460323.

The spelling of 1909048343 in words is "one billion, nine hundred nine million, forty-eight thousand, three hundred forty-three".