1155268 has 6 divisors (see below), whose sum is σ = 2021726. Its totient is φ = 577632.

The previous prime is 1155263. The next prime is 1155293. The reversal of 1155268 is 8625511.

It can be written as a sum of positive squares in only one way, i.e., 1149184 + 6084 = 1072^2 + 78^2 .

It is not an unprimeable number, because it can be changed into a prime (1155263) by changing a digit.

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 as a sum of consecutive naturals, namely, 144405 + ... + 144412.

2^1155268 is an apocalyptic number.

It is an amenable number.

1155268 is a deficient number, since it is larger than the sum of its proper divisors (866458).

1155268 is a wasteful number, since it uses less digits than its factorization.

1155268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288821 (or 288819 counting only the distinct ones).

The product of its digits is 2400, while the sum is 28.

The square root of 1155268 is about 1074.8339406625. The cubic root of 1155268 is about 104.9286892976.

The spelling of 1155268 in words is "one million, one hundred fifty-five thousand, two hundred sixty-eight".