135901280 has 24 divisors (see below), whose sum is σ = 321067152. Its totient is φ = 54360448.

The previous prime is 135901267. The next prime is 135901301. The reversal of 135901280 is 82109531.

It is a super-3 number, since 3×135901280³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424532 + ... + 424851.

It is an arithmetic number, because the mean of its divisors is an integer number (13377798).

Almost surely, 2^135901280 is an apocalyptic number.

135901280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135901280 is an abundant number, since it is smaller than the sum of its proper divisors (185165872).

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

135901280 is an equidigital number, since it uses as much as digits as its factorization.

135901280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849398 (or 849390 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 135901280 is about 11657.6704362407. The cubic root of 135901280 is about 514.1318581503.

The spelling of 135901280 in words is "one hundred thirty-five million, nine hundred one thousand, two hundred eighty".