3256531 has 2 divisors, whose sum is σ = 3256532. Its totient is φ = 3256530.

The previous prime is 3256523. The next prime is 3256549. The reversal of 3256531 is 1356523.

It is a happy number.

3256531 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 is a cyclic number.

It is not a de Polignac number, because 3256531 - 2³ = 3256523 is a prime.

It is a super-2 number, since 2×3256531² = 21209988307922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3256496 and 3256505.

It is not a weakly prime, because it can be changed into another prime (3256031) 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, 1628265 + 1628266.

It is an arithmetic number, because the mean of its divisors is an integer number (1628266).

Almost surely, 2^3256531 is an apocalyptic number.

3256531 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256531 is an equidigital number, since it uses as much as digits as its factorization.

3256531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 3256531 is about 1804.5861021298. The cubic root of 3256531 is about 148.2239578616.

The spelling of 3256531 in words is "three million, two hundred fifty-six thousand, five hundred thirty-one".