1021352089 has 2 divisors, whose sum is σ = 1021352090. Its totient is φ = 1021352088.

The previous prime is 1021352051. The next prime is 1021352113. The reversal of 1021352089 is 9802531201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1013467225 + 7884864 = 31835^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021352089 - 2²³ = 1012963481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021352089.

It is not a weakly prime, because it can be changed into another prime (1021352389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510676044 + 510676045.

It is an arithmetic number, because the mean of its divisors is an integer number (510676045).

Almost surely, 2^1021352089 is an apocalyptic number.

It is an amenable number.

1021352089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021352089 is an equidigital number, since it uses as much as digits as its factorization.

1021352089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1021352089 is about 31958.5996094948. The cubic root of 1021352089 is about 1007.0672986273.

The spelling of 1021352089 in words is "one billion, twenty-one million, three hundred fifty-two thousand, eighty-nine".