1139780079 has 48 divisors (see below), whose sum is σ = 1856863008. Its totient is φ = 695734272.

The previous prime is 1139780063. The next prime is 1139780087. The reversal of 1139780079 is 9700879311.

It is not a de Polignac number, because 1139780079 - 2⁴ = 1139780063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139780029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149119 + ... + 156575.

It is an arithmetic number, because the mean of its divisors is an integer number (38684646).

Almost surely, 2^1139780079 is an apocalyptic number.

1139780079 is a deficient number, since it is larger than the sum of its proper divisors (717082929).

1139780079 is an equidigital number, since it uses as much as digits as its factorization.

1139780079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526 (or 7514 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 1139780079 is about 33760.6291262470. The cubic root of 1139780079 is about 1044.5767473159.

The spelling of 1139780079 in words is "one billion, one hundred thirty-nine million, seven hundred eighty thousand, seventy-nine".