1138149068 has 18 divisors (see below), whose sum is σ = 2316946716. Its totient is φ = 487778088.

The previous prime is 1138149029. The next prime is 1138149071. The reversal of 1138149068 is 8609418311.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2903246 + ... + 2903637.

It is an arithmetic number, because the mean of its divisors is an integer number (128719262).

Almost surely, 2^1138149068 is an apocalyptic number.

It is an amenable number.

1138149068 is an abundant number, since it is smaller than the sum of its proper divisors (1178797648).

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

1138149068 is a wasteful number, since it uses less digits than its factorization.

1138149068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806901 (or 5806892 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 1138149068 is about 33736.4649600399. The cubic root of 1138149068 is about 1044.0782507174.

The spelling of 1138149068 in words is "one billion, one hundred thirty-eight million, one hundred forty-nine thousand, sixty-eight".