2249431 has 2 divisors, whose sum is σ = 2249432. Its totient is φ = 2249430.

The previous prime is 2249419. The next prime is 2249441. The reversal of 2249431 is 1349422.

2249431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2249431 - 2⁵ = 2249399 is a prime.

It is a super-2 number, since 2×2249431² = 10119879647522, which contains 22 as substring.

2249431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2249396 and 2249405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2249411) 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 as a sum of consecutive naturals, namely, 1124715 + 1124716.

It is an arithmetic number, because the mean of its divisors is an integer number (1124716).

2^2249431 is an apocalyptic number.

2249431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249431 is an equidigital number, since it uses as much as digits as its factorization.

2249431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 2249431 is about 1499.8103213407. The cubic root of 2249431 is about 131.0260228395.

Subtracting from 2249431 its reverse (1349422), we obtain a palindrome (900009).

The spelling of 2249431 in words is "two million, two hundred forty-nine thousand, four hundred thirty-one".