256306101 has 8 divisors (see below), whose sum is σ = 349689120. Its totient is φ = 166896912.

The previous prime is 256306097. The next prime is 256306133. The reversal of 256306101 is 101603652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 256306101 - 2² = 256306097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256306801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 993306 + ... + 993563.

It is an arithmetic number, because the mean of its divisors is an integer number (43711140).

Almost surely, 2^256306101 is an apocalyptic number.

It is an amenable number.

256306101 is a deficient number, since it is larger than the sum of its proper divisors (93383019).

256306101 is a wasteful number, since it uses less digits than its factorization.

256306101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986915.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 256306101 is about 16009.5627985276. The cubic root of 256306101 is about 635.2133955327.

Adding to 256306101 its reverse (101603652), we get a palindrome (357909753).

The spelling of 256306101 in words is "two hundred fifty-six million, three hundred six thousand, one hundred one".