133135827885 has 12 divisors (see below), whose sum is σ = 230768768412. Its totient is φ = 71005774848.

The previous prime is 133135827841. The next prime is 133135827917. The reversal of 133135827885 is 588728531331.

133135827885 is a `hidden beast` number, since 1 + 3 + 313 + 58 + 278 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 81153195876 + 51982632009 = 284874^2 + 227997^2 .

It is not a de Polignac number, because 133135827885 - 2¹² = 133135823789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1479286932 + ... + 1479287021.

It is an arithmetic number, because the mean of its divisors is an integer number (19230730701).

Almost surely, 2^133135827885 is an apocalyptic number.

133135827885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133135827885 is a deficient number, since it is larger than the sum of its proper divisors (97632940527).

133135827885 is a wasteful number, since it uses less digits than its factorization.

133135827885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958573964 (or 2958573961 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 133135827885 in words is "one hundred thirty-three billion, one hundred thirty-five million, eight hundred twenty-seven thousand, eight hundred eighty-five".