1163255 has 8 divisors (see below), whose sum is σ = 1415472. Its totient is φ = 917568.

The previous prime is 1163251. The next prime is 1163257. The reversal of 1163255 is 5523611.

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 1163255 - 2² = 1163251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1163255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163251) 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, 1229 + ... + 1958.

It is an arithmetic number, because the mean of its divisors is an integer number (176934).

2^1163255 is an apocalyptic number.

1163255 is a deficient number, since it is larger than the sum of its proper divisors (252217).

1163255 is an equidigital number, since it uses as much as digits as its factorization.

1163255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265.

The product of its digits is 900, while the sum is 23.

The square root of 1163255 is about 1078.5429986792. The cubic root of 1163255 is about 105.1699439936.

Adding to 1163255 its reverse (5523611), we get a palindrome (6686866).

The spelling of 1163255 in words is "one million, one hundred sixty-three thousand, two hundred fifty-five".