1151255 has 24 divisors (see below), whose sum is σ = 1663488. Its totient is φ = 762048.

The previous prime is 1151251. The next prime is 1151287. The reversal of 1151255 is 5521511.

It is a happy number.

It is not a de Polignac number, because 1151255 - 2² = 1151251 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 (1151251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9002 + ... + 9128.

It is an arithmetic number, because the mean of its divisors is an integer number (69312).

2^1151255 is an apocalyptic number.

1151255 is a deficient number, since it is larger than the sum of its proper divisors (512233).

1151255 is a wasteful number, since it uses less digits than its factorization.

1151255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 176 counting only the distinct ones).

The product of its digits is 250, while the sum is 20.

The square root of 1151255 is about 1072.9655166873. The cubic root of 1151255 is about 104.8070530673.

Adding to 1151255 its reverse (5521511), we get a palindrome (6672766).

The spelling of 1151255 in words is "one million, one hundred fifty-one thousand, two hundred fifty-five".