101256 has 16 divisors (see below), whose sum is σ = 253200. Its totient is φ = 33744.

The previous prime is 101221. The next prime is 101267. The reversal of 101256 is 652101.

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 5.

It is an unprimeable number.

101256 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2086 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (15825).

2¹⁰¹²⁵⁶ is an apocalyptic number.

It is an amenable number.

101256 is an abundant number, since it is smaller than the sum of its proper divisors (151944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101256 is a wasteful number, since it uses less digits than its factorization.

101256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228 (or 4224 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 101256 is about 318.2074794847. The cubic root of 101256 is about 46.6094082326.

Adding to 101256 its reverse (652101), we get a palindrome (753357).

The spelling of 101256 in words is "one hundred one thousand, two hundred fifty-six".