1849317097 has 2 divisors, whose sum is σ = 1849317098. Its totient is φ = 1849317096.

The previous prime is 1849317089. The next prime is 1849317133. The reversal of 1849317097 is 7907139481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1807015081 + 42302016 = 42509^2 + 6504^2 .

It is an emirp because it is prime and its reverse (7907139481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1849317097 - 2³ = 1849317089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1849317097.

It is not a weakly prime, because it can be changed into another prime (1849317007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 924658548 + 924658549.

It is an arithmetic number, because the mean of its divisors is an integer number (924658549).

Almost surely, 2^1849317097 is an apocalyptic number.

It is an amenable number.

1849317097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1849317097 is an equidigital number, since it uses as much as digits as its factorization.

1849317097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 1849317097 is about 43003.6870163478. The cubic root of 1849317097 is about 1227.4499567151.

The spelling of 1849317097 in words is "one billion, eight hundred forty-nine million, three hundred seventeen thousand, ninety-seven".