1128567 has 12 divisors (see below), whose sum is σ = 1654520. Its totient is φ = 683760.

The previous prime is 1128557. The next prime is 1128577. The reversal of 1128567 is 7658211.

It is an interprime number because it is at equal distance from previous prime (1128557) and next prime (1128577).

It is not a de Polignac number, because 1128567 - 2⁶ = 1128503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1192 + ... + 1917.

2^1128567 is an apocalyptic number.

1128567 is a deficient number, since it is larger than the sum of its proper divisors (525953).

1128567 is a wasteful number, since it uses less digits than its factorization.

1128567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134 (or 3123 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 1128567 is about 1062.3403409454. The cubic root of 1128567 is about 104.1139960567.

The spelling of 1128567 in words is "one million, one hundred twenty-eight thousand, five hundred sixty-seven".