1004988139 has 8 divisors (see below), whose sum is σ = 1009556240. Its totient is φ = 1000429056.

The previous prime is 1004988137. The next prime is 1004988143. The reversal of 1004988139 is 9318894001.

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

It is a cyclic number.

It is not a de Polignac number, because 1004988139 - 2¹ = 1004988137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004988095 and 1004988104.

It is not an unprimeable number, because it can be changed into a prime (1004988137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315547 + ... + 318715.

It is an arithmetic number, because the mean of its divisors is an integer number (126194530).

Almost surely, 2^1004988139 is an apocalyptic number.

1004988139 is a deficient number, since it is larger than the sum of its proper divisors (4568101).

1004988139 is a wasteful number, since it uses less digits than its factorization.

1004988139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 1004988139 is about 31701.5478959624. The cubic root of 1004988139 is about 1001.6599560214.

The spelling of 1004988139 in words is "one billion, four million, nine hundred eighty-eight thousand, one hundred thirty-nine".