1065523065 has 16 divisors (see below), whose sum is σ = 1705492800. Its totient is φ = 568060352.

The previous prime is 1065523027. The next prime is 1065523079. The reversal of 1065523065 is 5603255601.

It is a cyclic number.

It is not a de Polignac number, because 1065523065 - 2¹⁸ = 1065260921 is a prime.

It is a super-2 number, since 2×1065523065² = 2270678804093988450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31426 + ... + 55844.

It is an arithmetic number, because the mean of its divisors is an integer number (106593300).

Almost surely, 2^1065523065 is an apocalyptic number.

1065523065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1065523065 is a deficient number, since it is larger than the sum of its proper divisors (639969735).

1065523065 is a wasteful number, since it uses less digits than its factorization.

1065523065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27336.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 1065523065 is about 32642.3507885079. The cubic root of 1065523065 is about 1021.3806323090.

Adding to 1065523065 its reverse (5603255601), we get a palindrome (6668778666).

The spelling of 1065523065 in words is "one billion, sixty-five million, five hundred twenty-three thousand, sixty-five".