1065755389 has 2 divisors, whose sum is σ = 1065755390. Its totient is φ = 1065755388.

The previous prime is 1065755371. The next prime is 1065755401. The reversal of 1065755389 is 9835575601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 990360900 + 75394489 = 31470^2 + 8683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065755389 - 2¹³ = 1065747197 is a prime.

It is a super-2 number, since 2×1065755389² = 2271669098365082642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1065755309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532877694 + 532877695.

It is an arithmetic number, because the mean of its divisors is an integer number (532877695).

Almost surely, 2^1065755389 is an apocalyptic number.

It is an amenable number.

1065755389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1065755389 is an equidigital number, since it uses as much as digits as its factorization.

1065755389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134000, while the sum is 49.

The square root of 1065755389 is about 32645.9092230558. The cubic root of 1065755389 is about 1021.4548600124.

The spelling of 1065755389 in words is "one billion, sixty-five million, seven hundred fifty-five thousand, three hundred eighty-nine".