1143636 has 24 divisors (see below), whose sum is σ = 2874144. Its totient is φ = 351840.

The previous prime is 1143619. The next prime is 1143643. The reversal of 1143636 is 6363411.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3510 + ... + 3821.

It is an arithmetic number, because the mean of its divisors is an integer number (119756).

2^1143636 is an apocalyptic number.

It is an amenable number.

1143636 is an abundant number, since it is smaller than the sum of its proper divisors (1730508).

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

1143636 is a wasteful number, since it uses less digits than its factorization.

1143636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351 (or 7349 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 1143636 is about 1069.4091826799. The cubic root of 1143636 is about 104.5753369582.

The spelling of 1143636 in words is "one million, one hundred forty-three thousand, six hundred thirty-six".