2091597174 has 32 divisors (see below), whose sum is σ = 4650762240. Its totient is φ = 696783816.

The previous prime is 2091597173. The next prime is 2091597191. The reversal of 2091597174 is 4717951902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091597173) 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, 87819 + ... + 109065.

It is an arithmetic number, because the mean of its divisors is an integer number (145336320).

Almost surely, 2^2091597174 is an apocalyptic number.

2091597174 is an abundant number, since it is smaller than the sum of its proper divisors (2559165066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2091597174 is a wasteful number, since it uses less digits than its factorization.

2091597174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23081 (or 23075 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 45.

The square root of 2091597174 is about 45733.9827043305. The cubic root of 2091597174 is about 1278.8688684746.

The spelling of 2091597174 in words is "two billion, ninety-one million, five hundred ninety-seven thousand, one hundred seventy-four".