2091597039 has 16 divisors (see below), whose sum is σ = 3541328640. Its totient is φ = 1195198200.

The previous prime is 2091597037. The next prime is 2091597043. The reversal of 2091597039 is 9307951902.

It is a happy number.

2091597039 is a `hidden beast` number, since 20 + 9 + 1 + 597 + 0 + 39 = 666.

It is not a de Polignac number, because 2091597039 - 2¹ = 2091597037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2091596985 and 2091597003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091597031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5533137 + ... + 5533514.

It is an arithmetic number, because the mean of its divisors is an integer number (221333040).

Almost surely, 2^2091597039 is an apocalyptic number.

2091597039 is a deficient number, since it is larger than the sum of its proper divisors (1449731601).

2091597039 is a wasteful number, since it uses less digits than its factorization.

2091597039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066667 (or 11066661 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 2091597039 is about 45733.9812284039. The cubic root of 2091597039 is about 1278.8688409602.

The spelling of 2091597039 in words is "two billion, ninety-one million, five hundred ninety-seven thousand, thirty-nine".