249282713 has 4 divisors (see below), whose sum is σ = 263946420. Its totient is φ = 234619008.

The previous prime is 249282697. The next prime is 249282731. The reversal of 249282713 is 317282942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317282942 = 2 ⋅158641471.

It can be written as a sum of positive squares in 2 ways, for example, as 225390169 + 23892544 = 15013^2 + 4888^2 .

It is a cyclic number.

It is not a de Polignac number, because 249282713 - 2⁴ = 249282697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249282743) 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, 7331828 + ... + 7331861.

It is an arithmetic number, because the mean of its divisors is an integer number (65986605).

Almost surely, 2^249282713 is an apocalyptic number.

It is an amenable number.

249282713 is a deficient number, since it is larger than the sum of its proper divisors (14663707).

249282713 is a wasteful number, since it uses less digits than its factorization.

249282713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14663706.

The product of its digits is 48384, while the sum is 38.

The square root of 249282713 is about 15788.6894009604. The cubic root of 249282713 is about 629.3574644959.

The spelling of 249282713 in words is "two hundred forty-nine million, two hundred eighty-two thousand, seven hundred thirteen".