1143675636 has 12 divisors (see below), whose sum is σ = 2668576512. Its totient is φ = 381225208.

The previous prime is 1143675613. The next prime is 1143675671. The reversal of 1143675636 is 6365763411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47653140 + ... + 47653163.

It is an arithmetic number, because the mean of its divisors is an integer number (222381376).

Almost surely, 2^1143675636 is an apocalyptic number.

It is an amenable number.

1143675636 is an abundant number, since it is smaller than the sum of its proper divisors (1524900876).

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

1143675636 is a wasteful number, since it uses less digits than its factorization.

1143675636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95306310 (or 95306308 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 1143675636 is about 33818.2736992887. The cubic root of 1143675636 is about 1045.7654506411.

The spelling of 1143675636 in words is "one billion, one hundred forty-three million, six hundred seventy-five thousand, six hundred thirty-six".