1145827 has 4 divisors (see below), whose sum is σ = 1173816. Its totient is φ = 1117840.

The previous prime is 1145803. The next prime is 1145831. The reversal of 1145827 is 7285411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145827 - 2¹⁵ = 1113059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145795 and 1145804.

It is not an unprimeable number, because it can be changed into a prime (1145897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13933 + ... + 14014.

It is an arithmetic number, because the mean of its divisors is an integer number (293454).

2^1145827 is an apocalyptic number.

1145827 is a deficient number, since it is larger than the sum of its proper divisors (27989).

1145827 is an equidigital number, since it uses as much as digits as its factorization.

1145827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27988.

The product of its digits is 2240, while the sum is 28.

The square root of 1145827 is about 1070.4330899220. The cubic root of 1145827 is about 104.6420768412.

The spelling of 1145827 in words is "one million, one hundred forty-five thousand, eight hundred twenty-seven".