1138710168 has 24 divisors (see below), whose sum is σ = 3084006900. Its totient is φ = 379570032.

The previous prime is 1138710037. The next prime is 1138710193. The reversal of 1138710168 is 8610178311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7907638 + ... + 7907781.

Almost surely, 2^1138710168 is an apocalyptic number.

1138710168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1138710168 is an abundant number, since it is smaller than the sum of its proper divisors (1945296732).

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

1138710168 is a wasteful number, since it uses less digits than its factorization.

1138710168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15815431 (or 15815424 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 1138710168 is about 33744.7798629655. The cubic root of 1138710168 is about 1044.2497970988.

Adding to 1138710168 its reverse (8610178311), we get a palindrome (9748888479).

The spelling of 1138710168 in words is "one billion, one hundred thirty-eight million, seven hundred ten thousand, one hundred sixty-eight".