135620556 has 24 divisors (see below), whose sum is σ = 333103680. Its totient is φ = 42827472.

The previous prime is 135620549. The next prime is 135620561. The reversal of 135620556 is 655026531.

It is a super-3 number, since 3×135620556³ (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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297186 + ... + 297641.

It is an arithmetic number, because the mean of its divisors is an integer number (13879320).

Almost surely, 2^135620556 is an apocalyptic number.

It is an amenable number.

135620556 is an abundant number, since it is smaller than the sum of its proper divisors (197483124).

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

135620556 is a wasteful number, since it uses less digits than its factorization.

135620556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594853 (or 594851 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 135620556 is about 11645.6238991305. The cubic root of 135620556 is about 513.7776092337. Note that the first 3 decimals are identical.

It can be divided in two parts, 1356 and 20556, that added together give a palindrome (21912).

The spelling of 135620556 in words is "one hundred thirty-five million, six hundred twenty thousand, five hundred fifty-six".