135210660 has 48 divisors (see below), whose sum is σ = 407714496. Its totient is φ = 33282432.

The previous prime is 135210659. The next prime is 135210701. The reversal of 135210660 is 66012531.

It is a self number, because there is not a number n which added to its sum of digits gives 135210660.

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 15 ways as a sum of consecutive naturals, for example, 85894 + ... + 87453.

It is an arithmetic number, because the mean of its divisors is an integer number (8494052).

Almost surely, 2^135210660 is an apocalyptic number.

135210660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135210660 is an abundant number, since it is smaller than the sum of its proper divisors (272503836).

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

135210660 is a wasteful number, since it uses less digits than its factorization.

135210660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173372 (or 173370 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 135210660 is about 11628.0118678990. The cubic root of 135210660 is about 513.2594775775.

The spelling of 135210660 in words is "one hundred thirty-five million, two hundred ten thousand, six hundred sixty".