2249539 has 4 divisors (see below), whose sum is σ = 2254824. Its totient is φ = 2244256.

The previous prime is 2249537. The next prime is 2249557. The reversal of 2249539 is 9359422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9359422 = 2 ⋅4679711.

It is a cyclic number.

It is not a de Polignac number, because 2249539 - 2¹ = 2249537 is a prime.

It is a super-3 number, since 3×2249539³ = 34150874990756333457, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2249537) 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, 1942 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (563706).

2^2249539 is an apocalyptic number.

2249539 is a deficient number, since it is larger than the sum of its proper divisors (5285).

2249539 is an equidigital number, since it uses as much as digits as its factorization.

2249539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its digits is 19440, while the sum is 34.

The square root of 2249539 is about 1499.8463254614. The cubic root of 2249539 is about 131.0281197526.

The spelling of 2249539 in words is "two million, two hundred forty-nine thousand, five hundred thirty-nine".