8138180115 has 24 divisors (see below), whose sum is σ = 15191270640. Its totient is φ = 4006488384.

The previous prime is 8138180069. The next prime is 8138180147. The reversal of 8138180115 is 5110818318.

It is a happy number.

It is not a de Polignac number, because 8138180115 - 2⁹ = 8138179603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8138180115.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6955125 + ... + 6956294.

It is an arithmetic number, because the mean of its divisors is an integer number (632969610).

Almost surely, 2^8138180115 is an apocalyptic number.

8138180115 is a deficient number, since it is larger than the sum of its proper divisors (7053090525).

8138180115 is a wasteful number, since it uses less digits than its factorization.

8138180115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13911443 (or 13911440 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 36.

The square root of 8138180115 is about 90211.8623851653. The cubic root of 8138180115 is about 2011.4493408088.

The spelling of 8138180115 in words is "eight billion, one hundred thirty-eight million, one hundred eighty thousand, one hundred fifteen".