256103377 has 8 divisors (see below), whose sum is σ = 261315432. Its totient is φ = 250944000.

The previous prime is 256103363. The next prime is 256103387. The reversal of 256103377 is 773301652.

It can be written as a sum of positive squares in 4 ways, for example, as 122677776 + 133425601 = 11076^2 + 11551^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256103377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256103387) 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, 3274 + ... + 22867.

It is an arithmetic number, because the mean of its divisors is an integer number (32664429).

Almost surely, 2^256103377 is an apocalyptic number.

It is an amenable number.

256103377 is a deficient number, since it is larger than the sum of its proper divisors (5212055).

256103377 is a wasteful number, since it uses less digits than its factorization.

256103377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26339.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 256103377 is about 16003.2302051805. The cubic root of 256103377 is about 635.0458784303.

The spelling of 256103377 in words is "two hundred fifty-six million, one hundred three thousand, three hundred seventy-seven".