1139773979 has 8 divisors (see below), whose sum is σ = 1180248960. Its totient is φ = 1099377216.

The previous prime is 1139773969. The next prime is 1139773981. The reversal of 1139773979 is 9793779311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139773979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139773939) 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 7 ways as a sum of consecutive naturals, for example, 10934 + ... + 48980.

It is an arithmetic number, because the mean of its divisors is an integer number (147531120).

Almost surely, 2^1139773979 is an apocalyptic number.

1139773979 is a deficient number, since it is larger than the sum of its proper divisors (40474981).

1139773979 is a wasteful number, since it uses less digits than its factorization.

1139773979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39109.

The product of its digits is 2250423, while the sum is 56.

The square root of 1139773979 is about 33760.5387842078. The cubic root of 1139773979 is about 1044.5748838191.

The spelling of 1139773979 in words is "one billion, one hundred thirty-nine million, seven hundred seventy-three thousand, nine hundred seventy-nine".