1848091149 has 12 divisors (see below), whose sum is σ = 2761515900. Its totient is φ = 1189575744.

The previous prime is 1848091139. The next prime is 1848091151. The reversal of 1848091149 is 9411908481.

It can be written as a sum of positive squares in 2 ways, for example, as 1258475625 + 589615524 = 35475^2 + 24282^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1848091149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1848091139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3540144 + ... + 3540665.

It is an arithmetic number, because the mean of its divisors is an integer number (230126325).

Almost surely, 2^1848091149 is an apocalyptic number.

It is an amenable number.

1848091149 is a deficient number, since it is larger than the sum of its proper divisors (913424751).

1848091149 is a wasteful number, since it uses less digits than its factorization.

1848091149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7080844 (or 7080841 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 1848091149 is about 42989.4306661533. The cubic root of 1848091149 is about 1227.1786633346.

The spelling of 1848091149 in words is "one billion, eight hundred forty-eight million, ninety-one thousand, one hundred forty-nine".