1139379115 has 64 divisors (see below), whose sum is σ = 1704960000. Its totient is φ = 729025920.

The previous prime is 1139379079. The next prime is 1139379119. The reversal of 1139379115 is 5119739311.

It is not a de Polignac number, because 1139379115 - 2¹⁵ = 1139346347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139379119) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1541416 + ... + 1542154.

It is an arithmetic number, because the mean of its divisors is an integer number (26640000).

Almost surely, 2^1139379115 is an apocalyptic number.

1139379115 is a deficient number, since it is larger than the sum of its proper divisors (565580885).

1139379115 is an equidigital number, since it uses as much as digits as its factorization.

1139379115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 811 counting only the distinct ones).

The product of its digits is 25515, while the sum is 40.

The square root of 1139379115 is about 33754.6902666874. The cubic root of 1139379115 is about 1044.4542421641.

The spelling of 1139379115 in words is "one billion, one hundred thirty-nine million, three hundred seventy-nine thousand, one hundred fifteen".