2149834249 has 8 divisors (see below), whose sum is σ = 2288412000. Its totient is φ = 2013799392.

The previous prime is 2149834243. The next prime is 2149834259. The reversal of 2149834249 is 9424389412.

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 2149834249 - 2¹⁵ = 2149801481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2149834199 and 2149834208.

It is not an unprimeable number, because it can be changed into a prime (2149834243) 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, 633979 + ... + 637360.

It is an arithmetic number, because the mean of its divisors is an integer number (286051500).

Almost surely, 2^2149834249 is an apocalyptic number.

It is an amenable number.

2149834249 is a deficient number, since it is larger than the sum of its proper divisors (138577751).

2149834249 is a wasteful number, since it uses less digits than its factorization.

2149834249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271447.

The product of its digits is 497664, while the sum is 46.

The square root of 2149834249 is about 46366.3051040300. The cubic root of 2149834249 is about 1290.6297125871.

The spelling of 2149834249 in words is "two billion, one hundred forty-nine million, eight hundred thirty-four thousand, two hundred forty-nine".