1138612113 has 16 divisors (see below), whose sum is σ = 1741248000. Its totient is φ = 734587920.

The previous prime is 1138612081. The next prime is 1138612117. The reversal of 1138612113 is 3112168311.

1138612113 is a `hidden beast` number, since 1 + 1 + 38 + 612 + 1 + 13 = 666.

It is not a de Polignac number, because 1138612113 - 2⁵ = 1138612081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1138612117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679338 + ... + 681011.

It is an arithmetic number, because the mean of its divisors is an integer number (108828000).

Almost surely, 2^1138612113 is an apocalyptic number.

It is an amenable number.

1138612113 is a deficient number, since it is larger than the sum of its proper divisors (602635887).

1138612113 is a wasteful number, since it uses less digits than its factorization.

1138612113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360389 (or 1360383 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1138612113 is about 33743.3269403004. The cubic root of 1138612113 is about 1044.2198225844.

The spelling of 1138612113 in words is "one billion, one hundred thirty-eight million, six hundred twelve thousand, one hundred thirteen".