135236626225 has 6 divisors (see below), whose sum is σ = 167693416550. Its totient is φ = 108189300960.

The previous prime is 135236626223. The next prime is 135236626229. The reversal of 135236626225 is 522626632531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 10396657296 + 124839968929 = 101964^2 + 353327^2 .

It is not a de Polignac number, because 135236626225 - 2¹ = 135236626223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135236626223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2704732500 + ... + 2704732549.

Almost surely, 2^135236626225 is an apocalyptic number.

It is an amenable number.

135236626225 is a deficient number, since it is larger than the sum of its proper divisors (32456790325).

135236626225 is an equidigital number, since it uses as much as digits as its factorization.

135236626225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5409465059 (or 5409465054 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The spelling of 135236626225 in words is "one hundred thirty-five billion, two hundred thirty-six million, six hundred twenty-six thousand, two hundred twenty-five".