1022005939 has 2 divisors, whose sum is σ = 1022005940. Its totient is φ = 1022005938.

The previous prime is 1022005937. The next prime is 1022005961. The reversal of 1022005939 is 9395002201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1022005939 - 2¹ = 1022005937 is a prime.

It is a super-2 number, since 2×1022005939² = 2088992278702543442, which contains 22 as substring.

Together with 1022005937, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1022005939.

It is not a weakly prime, because it can be changed into another prime (1022005937) 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, 511002969 + 511002970.

It is an arithmetic number, because the mean of its divisors is an integer number (511002970).

Almost surely, 2^1022005939 is an apocalyptic number.

1022005939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022005939 is an equidigital number, since it uses as much as digits as its factorization.

1022005939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 1022005939 is about 31968.8276137865. The cubic root of 1022005939 is about 1007.2821545021.

The spelling of 1022005939 in words is "one billion, twenty-two million, five thousand, nine hundred thirty-nine".