2249868191 has 4 divisors (see below), whose sum is σ = 2262298584. Its totient is φ = 2237437800.

The previous prime is 2249868167. The next prime is 2249868209. The reversal of 2249868191 is 1918689422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2249868191 - 2¹⁰ = 2249867167 is a prime.

It is a super-2 number, since 2×2249868191² = 10123813753747224962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2249868161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6214925 + ... + 6215286.

It is an arithmetic number, because the mean of its divisors is an integer number (565574646).

Almost surely, 2^2249868191 is an apocalyptic number.

2249868191 is a deficient number, since it is larger than the sum of its proper divisors (12430393).

2249868191 is a wasteful number, since it uses less digits than its factorization.

2249868191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12430392.

The product of its digits is 497664, while the sum is 50.

The square root of 2249868191 is about 47432.7754933232. The cubic root of 2249868191 is about 1310.3451086564.

The spelling of 2249868191 in words is "two billion, two hundred forty-nine million, eight hundred sixty-eight thousand, one hundred ninety-one".