2149598191 has 8 divisors (see below), whose sum is σ = 2315502000. Its totient is φ = 1983772992.

The previous prime is 2149598189. The next prime is 2149598207. The reversal of 2149598191 is 1918959412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2149598191 - 2¹ = 2149598189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2149593191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45060 + ... + 79558.

It is an arithmetic number, because the mean of its divisors is an integer number (289437750).

Almost surely, 2^2149598191 is an apocalyptic number.

2149598191 is a deficient number, since it is larger than the sum of its proper divisors (165903809).

2149598191 is a wasteful number, since it uses less digits than its factorization.

2149598191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39305.

The product of its digits is 233280, while the sum is 49.

The square root of 2149598191 is about 46363.7594571450. The cubic root of 2149598191 is about 1290.5824725699.

The spelling of 2149598191 in words is "two billion, one hundred forty-nine million, five hundred ninety-eight thousand, one hundred ninety-one".