1099144636 has 12 divisors (see below), whose sum is σ = 1943333728. Its totient is φ = 543906432.

The previous prime is 1099144633. The next prime is 1099144637. The reversal of 1099144636 is 6364419901.

It is a junction number, because it is equal to n+sod(n) for n = 1099144592 and 1099144601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099144633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416036 + ... + 1416811.

Almost surely, 2^1099144636 is an apocalyptic number.

It is an amenable number.

1099144636 is a deficient number, since it is larger than the sum of its proper divisors (844189092).

1099144636 is a wasteful number, since it uses less digits than its factorization.

1099144636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832948 (or 2832946 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1099144636 is about 33153.3502982730. The cubic root of 1099144636 is about 1032.0124778152.

The spelling of 1099144636 in words is "one billion, ninety-nine million, one hundred forty-four thousand, six hundred thirty-six".