256102 has 16 divisors (see below), whose sum is σ = 479232. Its totient is φ = 99720.

The previous prime is 256093. The next prime is 256117. The reversal of 256102 is 201652.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

256102 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678 + ... + 985.

It is an arithmetic number, because the mean of its divisors is an integer number (29952).

2²⁵⁶¹⁰² is an apocalyptic number.

256102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

256102 is a deficient number, since it is larger than the sum of its proper divisors (223130).

256102 is a wasteful number, since it uses less digits than its factorization.

256102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 256102 is about 506.0652131890. The cubic root of 256102 is about 63.5044740270.

Adding to 256102 its reverse (201652), we get a palindrome (457754).

The spelling of 256102 in words is "two hundred fifty-six thousand, one hundred two".