135952866 has 96 divisors (see below), whose sum is σ = 358300800. Its totient is φ = 36391680.

The previous prime is 135952829. The next prime is 135952889. The reversal of 135952866 is 668259531.

135952866 is a `hidden beast` number, since 13 + 59 + 528 + 66 = 666.

It is a super-2 number, since 2×135952866² = 36966363547227912, which contains 22 as substring.

It is a zygodrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260686 + ... + 261206.

It is an arithmetic number, because the mean of its divisors is an integer number (3732300).

Almost surely, 2^135952866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135952866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179150400).

135952866 is an abundant number, since it is smaller than the sum of its proper divisors (222347934).

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

135952866 is a wasteful number, since it uses less digits than its factorization.

135952866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664 (or 661 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 135952866 is about 11659.8827609886. The cubic root of 135952866 is about 514.1969020580.

It can be divided in two parts, 13595 and 2866, that added together give a palindrome (16461).

The spelling of 135952866 in words is "one hundred thirty-five million, nine hundred fifty-two thousand, eight hundred sixty-six".