1012255 has 8 divisors (see below), whose sum is σ = 1220112. Its totient is φ = 806208.

The previous prime is 1012241. The next prime is 1012259. The reversal of 1012255 is 5522101.

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

It is a cyclic number.

It is not a de Polignac number, because 1012255 - 2¹³ = 1004063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1987 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (152514).

2^1012255 is an apocalyptic number.

1012255 is a deficient number, since it is larger than the sum of its proper divisors (207857).

1012255 is an equidigital number, since it uses as much as digits as its factorization.

1012255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1012255 is about 1006.1088410306. The cubic root of 1012255 is about 100.4068425467.

Adding to 1012255 its reverse (5522101), we get a palindrome (6534356).

The spelling of 1012255 in words is "one million, twelve thousand, two hundred fifty-five".