1138650115 has 4 divisors (see below), whose sum is σ = 1366380144. Its totient is φ = 910920088.

The previous prime is 1138650101. The next prime is 1138650127. The reversal of 1138650115 is 5110568311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5110568311 = 13883 ⋅368117.

It is a cyclic number.

It is not a de Polignac number, because 1138650115 - 2⁵ = 1138650083 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113865007 + ... + 113865016.

It is an arithmetic number, because the mean of its divisors is an integer number (341595036).

Almost surely, 2^1138650115 is an apocalyptic number.

1138650115 is a deficient number, since it is larger than the sum of its proper divisors (227730029).

1138650115 is an equidigital number, since it uses as much as digits as its factorization.

1138650115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227730028.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 1138650115 is about 33743.8900395316. The cubic root of 1138650115 is about 1044.2314396516.

The spelling of 1138650115 in words is "one billion, one hundred thirty-eight million, six hundred fifty thousand, one hundred fifteen".