249299 has 4 divisors (see below), whose sum is σ = 262440. Its totient is φ = 236160.

The previous prime is 249287. The next prime is 249311. The reversal of 249299 is 992942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992942 = 2 ⋅496471.

It is an interprime number because it is at equal distance from previous prime (249287) and next prime (249311).

It is a cyclic number.

It is not a de Polignac number, because 249299 - 2¹⁶ = 183763 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 4² + 2¹⁷ + 9² + 9⁵ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249229) 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, 6542 + ... + 6579.

It is an arithmetic number, because the mean of its divisors is an integer number (65610).

2²⁴⁹²⁹⁹ is an apocalyptic number.

249299 is a deficient number, since it is larger than the sum of its proper divisors (13141).

249299 is a wasteful number, since it uses less digits than its factorization.

249299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140.

The product of its digits is 11664, while the sum is 35.

The square root of 249299 is about 499.2985079088. The cubic root of 249299 is about 62.9371170650.

The spelling of 249299 in words is "two hundred forty-nine thousand, two hundred ninety-nine".