1020071199 has 32 divisors (see below), whose sum is σ = 1568885760. Its totient is φ = 577492992.

The previous prime is 1020071161. The next prime is 1020071207. The reversal of 1020071199 is 9911700201.

It is not a de Polignac number, because 1020071199 - 2⁸ = 1020070943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020073199) 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 31 ways as a sum of consecutive naturals, for example, 1576294 + ... + 1576940.

It is an arithmetic number, because the mean of its divisors is an integer number (49027680).

Almost surely, 2^1020071199 is an apocalyptic number.

1020071199 is a deficient number, since it is larger than the sum of its proper divisors (548814561).

1020071199 is a wasteful number, since it uses less digits than its factorization.

1020071199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239.

The product of its (nonzero) digits is 1134, while the sum is 30.

The square root of 1020071199 is about 31938.5534894741. The cubic root of 1020071199 is about 1006.6461307571.

The spelling of 1020071199 in words is "one billion, twenty million, seventy-one thousand, one hundred ninety-nine".