2291173249 has 16 divisors (see below), whose sum is σ = 2484089856. Its totient is φ = 2104960000.

The previous prime is 2291173243. The next prime is 2291173253. The reversal of 2291173249 is 9423711922.

It is a cyclic number.

It is not a de Polignac number, because 2291173249 - 2¹³ = 2291165057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2291173243) 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, 316824 + ... + 323974.

It is an arithmetic number, because the mean of its divisors is an integer number (155255616).

Almost surely, 2^2291173249 is an apocalyptic number.

It is an amenable number.

2291173249 is a deficient number, since it is larger than the sum of its proper divisors (192916607).

2291173249 is a wasteful number, since it uses less digits than its factorization.

2291173249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7616.

The product of its digits is 54432, while the sum is 40.

The square root of 2291173249 is about 47866.2015309341. The cubic root of 2291173249 is about 1318.3153533757.

The spelling of 2291173249 in words is "two billion, two hundred ninety-one million, one hundred seventy-three thousand, two hundred forty-nine".