1073526665 has 4 divisors (see below), whose sum is σ = 1288232004. Its totient is φ = 858821328.

The previous prime is 1073526647. The next prime is 1073526689. The reversal of 1073526665 is 5666253701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5666253701 = 19 ⋅298223879.

It can be written as a sum of positive squares in 2 ways, for example, as 812478016 + 261048649 = 28504^2 + 16157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073526665 - 2¹⁴ = 1073510281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107352662 + ... + 107352671.

It is an arithmetic number, because the mean of its divisors is an integer number (322058001).

Almost surely, 2^1073526665 is an apocalyptic number.

It is an amenable number.

1073526665 is a deficient number, since it is larger than the sum of its proper divisors (214705339).

1073526665 is an equidigital number, since it uses as much as digits as its factorization.

1073526665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214705338.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 1073526665 is about 32764.7167697204. The cubic root of 1073526665 is about 1023.9315982269.

The spelling of 1073526665 in words is "one billion, seventy-three million, five hundred twenty-six thousand, six hundred sixty-five".