1155282827 has 4 divisors (see below), whose sum is σ = 1156496040. Its totient is φ = 1154069616.

The previous prime is 1155282803. The next prime is 1155282833. The reversal of 1155282827 is 7282825511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7282825511 = 13 ⋅560217347.

It is a cyclic number.

It is not a de Polignac number, because 1155282827 - 2²⁶ = 1088173963 is a prime.

It is a super-2 number, since 2×1155282827² = 2669356820722223858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155285827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605177 + ... + 607082.

It is an arithmetic number, because the mean of its divisors is an integer number (289124010).

Almost surely, 2^1155282827 is an apocalyptic number.

1155282827 is a deficient number, since it is larger than the sum of its proper divisors (1213213).

1155282827 is an equidigital number, since it uses as much as digits as its factorization.

1155282827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213212.

The product of its digits is 89600, while the sum is 41.

The square root of 1155282827 is about 33989.4517019619. The cubic root of 1155282827 is about 1049.2913818945.

The spelling of 1155282827 in words is "one billion, one hundred fifty-five million, two hundred eighty-two thousand, eight hundred twenty-seven".