3256812431 has 2 divisors, whose sum is σ = 3256812432. Its totient is φ = 3256812430.

The previous prime is 3256812347. The next prime is 3256812463. The reversal of 3256812431 is 1342186523.

It is a strong prime.

It is an emirp because it is prime and its reverse (1342186523) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3256812431 is a prime.

It is a super-3 number, since 3×3256812431³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 3256812391 and 3256812400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3256812731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1628406215 + 1628406216.

It is an arithmetic number, because the mean of its divisors is an integer number (1628406216).

Almost surely, 2^3256812431 is an apocalyptic number.

3256812431 is a deficient number, since it is larger than the sum of its proper divisors (1).

3256812431 is an equidigital number, since it uses as much as digits as its factorization.

3256812431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 3256812431 is about 57068.4889496822. The cubic root of 3256812431 is about 1482.2822760093.

Adding to 3256812431 its reverse (1342186523), we get a palindrome (4598998954).

The spelling of 3256812431 in words is "three billion, two hundred fifty-six million, eight hundred twelve thousand, four hundred thirty-one".