1135198644 has 48 divisors (see below), whose sum is σ = 2678151168. Its totient is φ = 374226048.

The previous prime is 1135198639. The next prime is 1135198697. The reversal of 1135198644 is 4468915311.

It is a super-2 number, since 2×1135198644² = 2577351922678877472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1135198596 and 1135198605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 567454 + ... + 569450.

It is an arithmetic number, because the mean of its divisors is an integer number (55794816).

Almost surely, 2^1135198644 is an apocalyptic number.

It is an amenable number.

1135198644 is an abundant number, since it is smaller than the sum of its proper divisors (1542952524).

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

1135198644 is a wasteful number, since it uses less digits than its factorization.

1135198644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504 (or 2502 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 1135198644 is about 33692.7090629412. The cubic root of 1135198644 is about 1043.1752819432.

The spelling of 1135198644 in words is "one billion, one hundred thirty-five million, one hundred ninety-eight thousand, six hundred forty-four".