1020199139 has 2 divisors, whose sum is σ = 1020199140. Its totient is φ = 1020199138.

The previous prime is 1020199111. The next prime is 1020199153. The reversal of 1020199139 is 9319910201.

1020199139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020199139 - 2²⁰ = 1019150563 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1020199099 and 1020199108.

It is not a weakly prime, because it can be changed into another prime (1020198139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510099569 + 510099570.

It is an arithmetic number, because the mean of its divisors is an integer number (510099570).

Almost surely, 2^1020199139 is an apocalyptic number.

1020199139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020199139 is an equidigital number, since it uses as much as digits as its factorization.

1020199139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 1020199139 is about 31940.5563351674. The cubic root of 1020199139 is about 1006.6882143953.

The spelling of 1020199139 in words is "one billion, twenty million, one hundred ninety-nine thousand, one hundred thirty-nine".