1138311516 has 24 divisors (see below), whose sum is σ = 2657362960. Its totient is φ = 379251072.

The previous prime is 1138311497. The next prime is 1138311529. The reversal of 1138311516 is 6151138311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3450 + ... + 47838.

Almost surely, 2^1138311516 is an apocalyptic number.

It is an amenable number.

1138311516 is an abundant number, since it is smaller than the sum of its proper divisors (1519051444).

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

1138311516 is a wasteful number, since it uses less digits than its factorization.

1138311516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46533 (or 46531 counting only the distinct ones).

The product of its digits is 2160, while the sum is 30.

The square root of 1138311516 is about 33738.8724767145. The cubic root of 1138311516 is about 1044.1279221121.

Adding to 1138311516 its reverse (6151138311), we get a palindrome (7289449827).

The spelling of 1138311516 in words is "one billion, one hundred thirty-eight million, three hundred eleven thousand, five hundred sixteen".