1155275 has 12 divisors (see below), whose sum is σ = 1563144. Its totient is φ = 840000.

The previous prime is 1155263. The next prime is 1155293. The reversal of 1155275 is 5725511.

It is a happy number.

It is not a de Polignac number, because 1155275 - 2⁶ = 1155211 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1826 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (130262).

2^1155275 is an apocalyptic number.

1155275 is a deficient number, since it is larger than the sum of its proper divisors (407869).

1155275 is a wasteful number, since it uses less digits than its factorization.

1155275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222 (or 4217 counting only the distinct ones).

The product of its digits is 1750, while the sum is 26.

The square root of 1155275 is about 1074.8371969745. The cubic root of 1155275 is about 104.9289012252.

The spelling of 1155275 in words is "one million, one hundred fifty-five thousand, two hundred seventy-five".