3251749 has 2 divisors, whose sum is σ = 3251750. Its totient is φ = 3251748.

The previous prime is 3251747. The next prime is 3251761. The reversal of 3251749 is 9471523.

3251749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3150625 + 101124 = 1775^2 + 318^2 .

It is a cyclic number.

It is not a de Polignac number, because 3251749 - 2¹ = 3251747 is a prime.

Together with 3251747, it forms a pair of twin primes.

3251749 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 3251749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3251747) 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, 1625874 + 1625875.

It is an arithmetic number, because the mean of its divisors is an integer number (1625875).

Almost surely, 2^3251749 is an apocalyptic number.

It is an amenable number.

3251749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3251749 is an equidigital number, since it uses as much as digits as its factorization.

3251749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 31.

The square root of 3251749 is about 1803.2606578085. The cubic root of 3251749 is about 148.1513699662.

The spelling of 3251749 in words is "three million, two hundred fifty-one thousand, seven hundred forty-nine".