1020994199 has 2 divisors, whose sum is σ = 1020994200. Its totient is φ = 1020994198.

The previous prime is 1020994189. The next prime is 1020994217. The reversal of 1020994199 is 9914990201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020994199 - 2²⁸ = 752558743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020994159) 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 as a sum of consecutive naturals, namely, 510497099 + 510497100.

It is an arithmetic number, because the mean of its divisors is an integer number (510497100).

Almost surely, 2^1020994199 is an apocalyptic number.

1020994199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020994199 is an equidigital number, since it uses as much as digits as its factorization.

1020994199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 1020994199 is about 31952.9998435202. Note that the first 3 decimals coincide. The cubic root of 1020994199 is about 1006.9496567206.

The spelling of 1020994199 in words is "one billion, twenty million, nine hundred ninety-four thousand, one hundred ninety-nine".