1040799139 has 2 divisors, whose sum is σ = 1040799140. Its totient is φ = 1040799138.

The previous prime is 1040799127. The next prime is 1040799187. The reversal of 1040799139 is 9319970401.

It is a happy number.

1040799139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040799139 - 2²³ = 1032410531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1040799095 and 1040799104.

It is not a weakly prime, because it can be changed into another prime (1040799839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520399569 + 520399570.

It is an arithmetic number, because the mean of its divisors is an integer number (520399570).

Almost surely, 2^1040799139 is an apocalyptic number.

1040799139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040799139 is an equidigital number, since it uses as much as digits as its factorization.

1040799139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 1040799139 is about 32261.4187381770. The cubic root of 1040799139 is about 1013.4188422499.

The spelling of 1040799139 in words is "one billion, forty million, seven hundred ninety-nine thousand, one hundred thirty-nine".