135326665 has 4 divisors (see below), whose sum is σ = 162392004. Its totient is φ = 108261328.

The previous prime is 135326651. The next prime is 135326699. The reversal of 135326665 is 566623531.

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 44943616 + 90383049 = 6704^2 + 9507^2 .

It is a cyclic number.

It is not a de Polignac number, because 135326665 - 2²³ = 126938057 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, 13532662 + ... + 13532671.

It is an arithmetic number, because the mean of its divisors is an integer number (40598001).

Almost surely, 2^135326665 is an apocalyptic number.

It is an amenable number.

135326665 is a deficient number, since it is larger than the sum of its proper divisors (27065339).

135326665 is an equidigital number, since it uses as much as digits as its factorization.

135326665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27065338.

The product of its digits is 97200, while the sum is 37.

The square root of 135326665 is about 11632.9989684518. The cubic root of 135326665 is about 513.4062205587.

The spelling of 135326665 in words is "one hundred thirty-five million, three hundred twenty-six thousand, six hundred sixty-five".