135286660 has 12 divisors (see below), whose sum is σ = 284102028. Its totient is φ = 54114656.

The previous prime is 135286639. The next prime is 135286673. The reversal of 135286660 is 66682531.

It can be written as a sum of positive squares in 2 ways, for example, as 87759424 + 47527236 = 9368^2 + 6894^2 .

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, 3382147 + ... + 3382186.

It is an arithmetic number, because the mean of its divisors is an integer number (23675169).

Almost surely, 2^135286660 is an apocalyptic number.

135286660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135286660 is an abundant number, since it is smaller than the sum of its proper divisors (148815368).

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

135286660 is a wasteful number, since it uses less digits than its factorization.

135286660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6764342 (or 6764340 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 135286660 is about 11631.2793793288. The cubic root of 135286660 is about 513.3556248636.

The spelling of 135286660 in words is "one hundred thirty-five million, two hundred eighty-six thousand, six hundred sixty".