1909070057 has 2 divisors, whose sum is σ = 1909070058. Its totient is φ = 1909070056.

The previous prime is 1909070041. The next prime is 1909070089. The reversal of 1909070057 is 7500709091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1493358736 + 415711321 = 38644^2 + 20389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1909070057 - 2⁴ = 1909070041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1909070057.

It is not a weakly prime, because it can be changed into another prime (1909070027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954535028 + 954535029.

It is an arithmetic number, because the mean of its divisors is an integer number (954535029).

Almost surely, 2^1909070057 is an apocalyptic number.

It is an amenable number.

1909070057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1909070057 is an equidigital number, since it uses as much as digits as its factorization.

1909070057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19845, while the sum is 38.

The square root of 1909070057 is about 43692.9062549060. The cubic root of 1909070057 is about 1240.5300493645.

The spelling of 1909070057 in words is "one billion, nine hundred nine million, seventy thousand, fifty-seven".