1138087835 has 4 divisors (see below), whose sum is σ = 1365705408. Its totient is φ = 910470264.

The previous prime is 1138087823. The next prime is 1138087871. The reversal of 1138087835 is 5387808311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5387808311 = 1871 ⋅2879641.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138087835 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113808779 + ... + 113808788.

It is an arithmetic number, because the mean of its divisors is an integer number (341426352).

Almost surely, 2^1138087835 is an apocalyptic number.

1138087835 is a deficient number, since it is larger than the sum of its proper divisors (227617573).

1138087835 is an equidigital number, since it uses as much as digits as its factorization.

1138087835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227617572.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 1138087835 is about 33735.5574283278. The cubic root of 1138087835 is about 1044.0595264009.

The spelling of 1138087835 in words is "one billion, one hundred thirty-eight million, eighty-seven thousand, eight hundred thirty-five".