249301049 has 4 divisors (see below), whose sum is σ = 249877236. Its totient is φ = 248724864.

The previous prime is 249301043. The next prime is 249301061. The reversal of 249301049 is 940103942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940103942 = 2 ⋅470051971.

It can be written as a sum of positive squares in 2 ways, for example, as 149940025 + 99361024 = 12245^2 + 9968^2 .

It is a cyclic number.

It is not a de Polignac number, because 249301049 - 2¹⁶ = 249235513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (249301043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287444 + ... + 288309.

It is an arithmetic number, because the mean of its divisors is an integer number (62469309).

Almost surely, 2^249301049 is an apocalyptic number.

It is an amenable number.

249301049 is a deficient number, since it is larger than the sum of its proper divisors (576187).

249301049 is an equidigital number, since it uses as much as digits as its factorization.

249301049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576186.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 249301049 is about 15789.2700591256. The cubic root of 249301049 is about 629.3728949221.

The spelling of 249301049 in words is "two hundred forty-nine million, three hundred one thousand, forty-nine".