1143937636 has 48 divisors (see below), whose sum is σ = 2150487360. Its totient is φ = 530824320.

The previous prime is 1143937609. The next prime is 1143937657. The reversal of 1143937636 is 6367393411.

It is a junction number, because it is equal to n+sod(n) for n = 1143937592 and 1143937601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053470 + ... + 2054026.

It is an arithmetic number, because the mean of its divisors is an integer number (44801820).

Almost surely, 2^1143937636 is an apocalyptic number.

It is an amenable number.

1143937636 is a deficient number, since it is larger than the sum of its proper divisors (1006549724).

1143937636 is a wasteful number, since it uses less digits than its factorization.

1143937636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084 (or 1082 counting only the distinct ones).

The product of its digits is 244944, while the sum is 43.

The square root of 1143937636 is about 33822.1471228543. The cubic root of 1143937636 is about 1045.8453012618.

The spelling of 1143937636 in words is "one billion, one hundred forty-three million, nine hundred thirty-seven thousand, six hundred thirty-six".