1020332189 has 2 divisors, whose sum is σ = 1020332190. Its totient is φ = 1020332188.

The previous prime is 1020332179. The next prime is 1020332227. The reversal of 1020332189 is 9812330201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1005968089 + 14364100 = 31717^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020332189 - 2²⁰ = 1019283613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020332119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510166094 + 510166095.

It is an arithmetic number, because the mean of its divisors is an integer number (510166095).

Almost surely, 2^1020332189 is an apocalyptic number.

It is an amenable number.

1020332189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020332189 is an equidigital number, since it uses as much as digits as its factorization.

1020332189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1020332189 is about 31942.6390425087. The cubic root of 1020332189 is about 1006.7319751474.

The spelling of 1020332189 in words is "one billion, twenty million, three hundred thirty-two thousand, one hundred eighty-nine".