135058820 has 24 divisors (see below), whose sum is σ = 305441304. Its totient is φ = 49867776.

The previous prime is 135058813. The next prime is 135058831. The reversal of 135058820 is 28850531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4596736 + 130462084 = 2144^2 + 11422^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259469 + ... + 259988.

It is an arithmetic number, because the mean of its divisors is an integer number (12726721).

Almost surely, 2^135058820 is an apocalyptic number.

135058820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135058820 is an abundant number, since it is smaller than the sum of its proper divisors (170382484).

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

135058820 is a wasteful number, since it uses less digits than its factorization.

135058820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519479 (or 519477 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 135058820 is about 11621.4809727504. The cubic root of 135058820 is about 513.0672774704.

The spelling of 135058820 in words is "one hundred thirty-five million, fifty-eight thousand, eight hundred twenty".