135623885 has 8 divisors (see below), whose sum is σ = 163041120. Its totient is φ = 108304144.

The previous prime is 135623863. The next prime is 135623897. The reversal of 135623885 is 588326531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135623885 - 2²² = 131429581 is a prime.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 21275 + ... + 26904.

It is an arithmetic number, because the mean of its divisors is an integer number (20380140).

Almost surely, 2^135623885 is an apocalyptic number.

It is an amenable number.

135623885 is a deficient number, since it is larger than the sum of its proper divisors (27417235).

135623885 is an equidigital number, since it uses as much as digits as its factorization.

135623885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48747.

The product of its digits is 172800, while the sum is 41.

The square root of 135623885 is about 11645.7668274786. The cubic root of 135623885 is about 513.7818130007.

The spelling of 135623885 in words is "one hundred thirty-five million, six hundred twenty-three thousand, eight hundred eighty-five".