135066636 has 48 divisors (see below), whose sum is σ = 352245600. Its totient is φ = 44755776.

The previous prime is 135066623. The next prime is 135066661. The reversal of 135066636 is 636660531.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 135066636.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15070 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (7338450).

Almost surely, 2^135066636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135066636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176122800).

135066636 is an abundant number, since it is smaller than the sum of its proper divisors (217178964).

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

135066636 is a wasteful number, since it uses less digits than its factorization.

135066636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7415 (or 7407 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 135066636 is about 11621.8172417226. The cubic root of 135066636 is about 513.0771745322.

The spelling of 135066636 in words is "one hundred thirty-five million, sixty-six thousand, six hundred thirty-six".