135626715444089 has 4 divisors (see below), whose sum is σ = 135626739234420. Its totient is φ = 135626691653760.

The previous prime is 135626715444053. The next prime is 135626715444109. The reversal of 135626715444089 is 980444517626531.

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 28402078009600 + 107224637434489 = 5329360^2 + 10354933^2 .

It is a cyclic number.

It is not a de Polignac number, because 135626715444089 - 2⁸ = 135626715443833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135626715444589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313917 + ... + 16631525.

It is an arithmetic number, because the mean of its divisors is an integer number (33906684808605).

It is a 1-persistent number, because it is pandigital, but 2⋅135626715444089 = 271253430888178 is not.

Almost surely, 2^{135626715444089} is an apocalyptic number.

It is an amenable number.

135626715444089 is a deficient number, since it is larger than the sum of its proper divisors (23790331).

135626715444089 is an equidigital number, since it uses as much as digits as its factorization.

135626715444089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23790330.

The product of its (nonzero) digits is 174182400, while the sum is 65.

The spelling of 135626715444089 in words is "one hundred thirty-five trillion, six hundred twenty-six billion, seven hundred fifteen million, four hundred forty-four thousand, eighty-nine".