135388260 has 120 divisors (see below), whose sum is σ = 485432640. Its totient is φ = 30943296.

The previous prime is 135388259. The next prime is 135388271. The reversal of 135388260 is 62883531.

135388260 is a `hidden beast` number, since 13 + 5 + 388 + 260 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5371 + ... + 17309.

It is an arithmetic number, because the mean of its divisors is an integer number (4045272).

Almost surely, 2^135388260 is an apocalyptic number.

135388260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135388260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242716320).

135388260 is an abundant number, since it is smaller than the sum of its proper divisors (350044380).

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

135388260 is a wasteful number, since it uses less digits than its factorization.

135388260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11967 (or 11956 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 135388260 is about 11635.6460929336. The cubic root of 135388260 is about 513.4841023753.

The spelling of 135388260 in words is "one hundred thirty-five million, three hundred eighty-eight thousand, two hundred sixty".