2249531 has 4 divisors (see below), whose sum is σ = 2257032. Its totient is φ = 2242032.

The previous prime is 2249483. The next prime is 2249537. The reversal of 2249531 is 1359422.

2249531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2249531 - 2¹⁰ = 2248507 is a prime.

It is a super-2 number, since 2×2249531² = 10120779439922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2249531.

It is not an unprimeable number, because it can be changed into a prime (2249537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3281 + ... + 3906.

It is an arithmetic number, because the mean of its divisors is an integer number (564258).

2^2249531 is an apocalyptic number.

2249531 is a deficient number, since it is larger than the sum of its proper divisors (7501).

2249531 is an equidigital number, since it uses as much as digits as its factorization.

2249531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500.

The product of its digits is 2160, while the sum is 26.

The square root of 2249531 is about 1499.8436585191. The cubic root of 2249531 is about 131.0279644280.

The spelling of 2249531 in words is "two million, two hundred forty-nine thousand, five hundred thirty-one".