135667788 has 12 divisors (see below), whose sum is σ = 316558200. Its totient is φ = 45222592.

The previous prime is 135667783. The next prime is 135667801. The reversal of 135667788 is 887766531.

135667788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 135667788.

It is not an unprimeable number, because it can be changed into a prime (135667783) 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, 5652813 + ... + 5652836.

It is an arithmetic number, because the mean of its divisors is an integer number (26379850).

Almost surely, 2^135667788 is an apocalyptic number.

It is an amenable number.

135667788 is an abundant number, since it is smaller than the sum of its proper divisors (180890412).

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

135667788 is a wasteful number, since it uses less digits than its factorization.

135667788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11305656 (or 11305654 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 135667788 is about 11647.6516088008. The cubic root of 135667788 is about 513.8372460326.

The spelling of 135667788 in words is "one hundred thirty-five million, six hundred sixty-seven thousand, seven hundred eighty-eight".