256100083 has 4 divisors (see below), whose sum is σ = 264361408. Its totient is φ = 247838760.

The previous prime is 256100071. The next prime is 256100099. The reversal of 256100083 is 380001652.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256100083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256100003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4130616 + ... + 4130677.

It is an arithmetic number, because the mean of its divisors is an integer number (66090352).

Almost surely, 2^256100083 is an apocalyptic number.

256100083 is a deficient number, since it is larger than the sum of its proper divisors (8261325).

256100083 is an equidigital number, since it uses as much as digits as its factorization.

256100083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261324.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 256100083 is about 16003.1272881272. The cubic root of 256100083 is about 635.0431557666.

The spelling of 256100083 in words is "two hundred fifty-six million, one hundred thousand, eighty-three".