135221484 has 12 divisors (see below), whose sum is σ = 315516824. Its totient is φ = 45073824.

The previous prime is 135221483. The next prime is 135221501. The reversal of 135221484 is 484122531.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (135221483) 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, 5634217 + ... + 5634240.

Almost surely, 2^135221484 is an apocalyptic number.

It is an amenable number.

135221484 is an abundant number, since it is smaller than the sum of its proper divisors (180295340).

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

135221484 is a wasteful number, since it uses less digits than its factorization.

135221484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11268464 (or 11268462 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 135221484 is about 11628.4772863862. The cubic root of 135221484 is about 513.2731731751.

The spelling of 135221484 in words is "one hundred thirty-five million, two hundred twenty-one thousand, four hundred eighty-four".