1113236556 has 12 divisors (see below), whose sum is σ = 2597551992. Its totient is φ = 371078848.

The previous prime is 1113236549. The next prime is 1113236561. The reversal of 1113236556 is 6556323111.

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

It is a super-2 number, since 2×1113236556² = 2478591259229482272, which contains 22 as substring.

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, 46384845 + ... + 46384868.

It is an arithmetic number, because the mean of its divisors is an integer number (216462666).

Almost surely, 2^1113236556 is an apocalyptic number.

It is an amenable number.

1113236556 is an abundant number, since it is smaller than the sum of its proper divisors (1484315436).

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

1113236556 is a wasteful number, since it uses less digits than its factorization.

1113236556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92769720 (or 92769718 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The square root of 1113236556 is about 33365.1997746155. The cubic root of 1113236556 is about 1036.4041731339.

Adding to 1113236556 its reverse (6556323111), we get a palindrome (7669559667).

The spelling of 1113236556 in words is "one billion, one hundred thirteen million, two hundred thirty-six thousand, five hundred fifty-six".