1075712665 has 4 divisors (see below), whose sum is σ = 1290855204. Its totient is φ = 860570128.

The previous prime is 1075712663. The next prime is 1075712681. The reversal of 1075712665 is 5662175701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 345848409 + 729864256 = 18597^2 + 27016^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075712665 - 2¹ = 1075712663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1075712663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107571262 + ... + 107571271.

It is an arithmetic number, because the mean of its divisors is an integer number (322713801).

Almost surely, 2^1075712665 is an apocalyptic number.

It is an amenable number.

1075712665 is a deficient number, since it is larger than the sum of its proper divisors (215142539).

1075712665 is an equidigital number, since it uses as much as digits as its factorization.

1075712665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215142538.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1075712665 is about 32798.0588602435. The cubic root of 1075712665 is about 1024.6261305521.

The spelling of 1075712665 in words is "one billion, seventy-five million, seven hundred twelve thousand, six hundred sixty-five".