1143306 has 24 divisors (see below), whose sum is σ = 2608320. Its totient is φ = 360936.

The previous prime is 1143299. The next prime is 1143341. The reversal of 1143306 is 6033411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1330 + ... + 2013.

It is an arithmetic number, because the mean of its divisors is an integer number (108680).

2^1143306 is an apocalyptic number.

1143306 is an abundant number, since it is smaller than the sum of its proper divisors (1465014).

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

1143306 is a wasteful number, since it uses less digits than its factorization.

1143306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1143306 is about 1069.2548807464. The cubic root of 1143306 is about 104.5652774693.

Adding to 1143306 its reverse (6033411), we get a palindrome (7176717).

The spelling of 1143306 in words is "one million, one hundred forty-three thousand, three hundred six".