2149825273 has 4 divisors (see below), whose sum is σ = 2190388068. Its totient is φ = 2109262480.

The previous prime is 2149825267. The next prime is 2149825277. The reversal of 2149825273 is 3725289412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1306677904 + 843147369 = 36148^2 + 29037^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149825273 - 2⁵ = 2149825241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2149825277) 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, 20281318 + ... + 20281423.

It is an arithmetic number, because the mean of its divisors is an integer number (547597017).

Almost surely, 2^2149825273 is an apocalyptic number.

It is an amenable number.

2149825273 is a deficient number, since it is larger than the sum of its proper divisors (40562795).

2149825273 is an equidigital number, since it uses as much as digits as its factorization.

2149825273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40562794.

The product of its digits is 241920, while the sum is 43.

The square root of 2149825273 is about 46366.2083095006. The cubic root of 2149825273 is about 1290.6279163698.

The spelling of 2149825273 in words is "two billion, one hundred forty-nine million, eight hundred twenty-five thousand, two hundred seventy-three".