256100743 has 2 divisors, whose sum is σ = 256100744. Its totient is φ = 256100742.

The previous prime is 256100687. The next prime is 256100749. The reversal of 256100743 is 347001652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 256100743 - 2⁹ = 256100231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256100749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128050371 + 128050372.

It is an arithmetic number, because the mean of its divisors is an integer number (128050372).

Almost surely, 2^256100743 is an apocalyptic number.

256100743 is a deficient number, since it is larger than the sum of its proper divisors (1).

256100743 is an equidigital number, since it uses as much as digits as its factorization.

256100743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 256100743 is about 16003.1479090834. The cubic root of 256100743 is about 635.0437012931.

Subtracting 256100743 from its reverse (347001652), we obtain a palindrome (90900909).

The spelling of 256100743 in words is "two hundred fifty-six million, one hundred thousand, seven hundred forty-three".