1145284 has 12 divisors (see below), whose sum is σ = 2290624. Its totient is φ = 490824.

The previous prime is 1145281. The next prime is 1145293. The reversal of 1145284 is 4825411.

1145284 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145281) 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, 20424 + ... + 20479.

2^1145284 is an apocalyptic number.

1145284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1145284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145284 is a wasteful number, since it uses less digits than its factorization.

1145284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40914 (or 40912 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1145284 is about 1070.1794242089. The cubic root of 1145284 is about 104.6255444950.

The spelling of 1145284 in words is "one million, one hundred forty-five thousand, two hundred eighty-four".