1155575 has 12 divisors (see below), whose sum is σ = 1517760. Its totient is φ = 869760.

The previous prime is 1155569. The next prime is 1155577. The reversal of 1155575 is 5755511.

It is not a de Polignac number, because 1155575 - 2¹⁰ = 1154551 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 935 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (126480).

2^1155575 is an apocalyptic number.

1155575 is a deficient number, since it is larger than the sum of its proper divisors (362185).

1155575 is a wasteful number, since it uses less digits than its factorization.

1155575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2741 counting only the distinct ones).

The product of its digits is 4375, while the sum is 29.

The square root of 1155575 is about 1074.9767439345. The cubic root of 1155575 is about 104.9379830299.

The spelling of 1155575 in words is "one million, one hundred fifty-five thousand, five hundred seventy-five".