135365538 has 96 divisors (see below), whose sum is σ = 361808640. Its totient is φ = 33294240.

The previous prime is 135365521. The next prime is 135365539. The reversal of 135365538 is 835563531.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 135365496 and 135365505.

It is not an unprimeable number, because it can be changed into a prime (135365539) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60345 + ... + 62547.

It is an arithmetic number, because the mean of its divisors is an integer number (3768840).

Almost surely, 2^135365538 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135365538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180904320).

135365538 is an abundant number, since it is smaller than the sum of its proper divisors (226443102).

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

135365538 is a wasteful number, since it uses less digits than its factorization.

135365538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252 (or 2245 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 135365538 is about 11634.6696558175. The cubic root of 135365538 is about 513.4553750235.

The spelling of 135365538 in words is "one hundred thirty-five million, three hundred sixty-five thousand, five hundred thirty-eight".