135528980 has 12 divisors (see below), whose sum is σ = 284610900. Its totient is φ = 54211584.

The previous prime is 135528979. The next prime is 135529019. The reversal of 135528980 is 89825531.

It can be written as a sum of positive squares in 2 ways, for example, as 65739664 + 69789316 = 8108^2 + 8354^2 .

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, 3388205 + ... + 3388244.

It is an arithmetic number, because the mean of its divisors is an integer number (23717575).

Almost surely, 2^135528980 is an apocalyptic number.

135528980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135528980 is an abundant number, since it is smaller than the sum of its proper divisors (149081920).

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

135528980 is a wasteful number, since it uses less digits than its factorization.

135528980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776458 (or 6776456 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 41.

The square root of 135528980 is about 11641.6914578595. The cubic root of 135528980 is about 513.6619426671.

The spelling of 135528980 in words is "one hundred thirty-five million, five hundred twenty-eight thousand, nine hundred eighty".