3581257 has 2 divisors, whose sum is σ = 3581258. Its totient is φ = 3581256.

The previous prime is 3581251. The next prime is 3581269. The reversal of 3581257 is 7521853.

3581257 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., 1901641 + 1679616 = 1379^2 + 1296^2 .

It is a cyclic number.

It is not a de Polignac number, because 3581257 - 2⁷ = 3581129 is a prime.

It is not a weakly prime, because it can be changed into another prime (3581251) 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, 1790628 + 1790629.

It is an arithmetic number, because the mean of its divisors is an integer number (1790629).

Almost surely, 2^3581257 is an apocalyptic number.

It is an amenable number.

3581257 is a deficient number, since it is larger than the sum of its proper divisors (1).

3581257 is an equidigital number, since it uses as much as digits as its factorization.

3581257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 31.

The square root of 3581257 is about 1892.4209362613. The cubic root of 3581257 is about 152.9954432123.

The spelling of 3581257 in words is "three million, five hundred eighty-one thousand, two hundred fifty-seven".