1022102989 has 4 divisors (see below), whose sum is σ = 1022243740. Its totient is φ = 1021962240.

The previous prime is 1022102987. The next prime is 1022103011. The reversal of 1022102989 is 9892012201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 857494089 + 164608900 = 29283^2 + 12830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022102989 - 2¹ = 1022102987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022102987) 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 3 ways as a sum of consecutive naturals, for example, 58854 + ... + 74215.

It is an arithmetic number, because the mean of its divisors is an integer number (255560935).

Almost surely, 2^1022102989 is an apocalyptic number.

It is an amenable number.

1022102989 is a deficient number, since it is larger than the sum of its proper divisors (140751).

1022102989 is an equidigital number, since it uses as much as digits as its factorization.

1022102989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140750.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1022102989 is about 31970.3454626315. The cubic root of 1022102989 is about 1007.3140374346.

The spelling of 1022102989 in words is "one billion, twenty-two million, one hundred two thousand, nine hundred eighty-nine".