135252636 has 24 divisors (see below), whose sum is σ = 326472720. Its totient is φ = 43529472.

The previous prime is 135252631. The next prime is 135252641. The reversal of 135252636 is 636252531.

It is an interprime number because it is at equal distance from previous prime (135252631) and next prime (135252641).

It is a junction number, because it is equal to n+sod(n) for n = 135252597 and 135252606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135252631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193981 + ... + 194676.

It is an arithmetic number, because the mean of its divisors is an integer number (13603030).

Almost surely, 2^135252636 is an apocalyptic number.

It is an amenable number.

135252636 is an abundant number, since it is smaller than the sum of its proper divisors (191220084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135252636 is a wasteful number, since it uses less digits than its factorization.

135252636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388693 (or 388691 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 135252636 is about 11629.8166795526. The cubic root of 135252636 is about 513.3125856947.

It can be divided in two parts, 13525 and 2636, that added together give a palindrome (16161).

The spelling of 135252636 in words is "one hundred thirty-five million, two hundred fifty-two thousand, six hundred thirty-six".