1143064 has 32 divisors (see below), whose sum is σ = 2394000. Its totient is φ = 508032.

The previous prime is 1143061. The next prime is 1143067. The reversal of 1143064 is 4603411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1143061) and next prime (1143067).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2827 + ... + 3205.

2^1143064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197000).

1143064 is an abundant number, since it is smaller than the sum of its proper divisors (1250936).

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

1143064 is a wasteful number, since it uses less digits than its factorization.

1143064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143064 is about 1069.1417118418. The cubic root of 1143064 is about 104.5578992804.

Adding to 1143064 its reverse (4603411), we get a palindrome (5746475).

The spelling of 1143064 in words is "one million, one hundred forty-three thousand, sixty-four".