249298273 has 16 divisors (see below), whose sum is σ = 290998656. Its totient is φ = 209139840.

The previous prime is 249298261. The next prime is 249298279. The reversal of 249298273 is 372892942.

It is not a de Polignac number, because 249298273 - 2²¹ = 247201121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249298279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281890 + ... + 282772.

It is an arithmetic number, because the mean of its divisors is an integer number (18187416).

Almost surely, 2^249298273 is an apocalyptic number.

It is an amenable number.

249298273 is a deficient number, since it is larger than the sum of its proper divisors (41700383).

249298273 is an equidigital number, since it uses as much as digits as its factorization.

249298273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704.

The product of its digits is 435456, while the sum is 46.

The square root of 249298273 is about 15789.1821510805. The cubic root of 249298273 is about 629.3705588634.

It can be divided in two parts, 249298 and 273, that added together give a triangular number (249571 = T₇₀₆).

The spelling of 249298273 in words is "two hundred forty-nine million, two hundred ninety-eight thousand, two hundred seventy-three".