256126303 has 4 divisors (see below), whose sum is σ = 262373328. Its totient is φ = 249879280.

The previous prime is 256126291. The next prime is 256126307. The reversal of 256126303 is 303621652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 256126303 - 2²¹ = 254029151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256126307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3123451 + ... + 3123532.

It is an arithmetic number, because the mean of its divisors is an integer number (65593332).

Almost surely, 2^256126303 is an apocalyptic number.

256126303 is a deficient number, since it is larger than the sum of its proper divisors (6247025).

256126303 is an equidigital number, since it uses as much as digits as its factorization.

256126303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247024.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 256126303 is about 16003.9464820400. The cubic root of 256126303 is about 635.0648273245.

Adding to 256126303 its reverse (303621652), we get a palindrome (559747955).

The spelling of 256126303 in words is "two hundred fifty-six million, one hundred twenty-six thousand, three hundred three".