135185864 has 32 divisors (see below), whose sum is σ = 283996800. Its totient is φ = 59785920.

The previous prime is 135185857. The next prime is 135185879. The reversal of 135185864 is 468581531.

It is a super-3 number, since 3×135185864³ (a number of 25 digits) contains 333 as substring.

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 7 ways as a sum of consecutive naturals, for example, 17504 + ... + 24015.

It is an arithmetic number, because the mean of its divisors is an integer number (8874900).

Almost surely, 2^135185864 is an apocalyptic number.

It is an amenable number.

135185864 is an abundant number, since it is smaller than the sum of its proper divisors (148810936).

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

135185864 is a wasteful number, since it uses less digits than its factorization.

135185864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41573 (or 41569 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 135185864 is about 11626.9456006296. The cubic root of 135185864 is about 513.2281004655.

The spelling of 135185864 in words is "one hundred thirty-five million, one hundred eighty-five thousand, eight hundred sixty-four".