1065427289 has 2 divisors, whose sum is σ = 1065427290. Its totient is φ = 1065427288.

The previous prime is 1065427267. The next prime is 1065427301. The reversal of 1065427289 is 9827245601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665227264 + 400200025 = 25792^2 + 20005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065427289 is a prime.

It is a super-2 number, since 2×1065427289² = 2270270616291779042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1065427219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532713644 + 532713645.

It is an arithmetic number, because the mean of its divisors is an integer number (532713645).

Almost surely, 2^1065427289 is an apocalyptic number.

It is an amenable number.

1065427289 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065427289 is an equidigital number, since it uses as much as digits as its factorization.

1065427289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1065427289 is about 32640.8837043362. The cubic root of 1065427289 is about 1021.3500286597.

The spelling of 1065427289 in words is "one billion, sixty-five million, four hundred twenty-seven thousand, two hundred eighty-nine".