135143556 has 24 divisors (see below), whose sum is σ = 320043360. Its totient is φ = 44375232.

The previous prime is 135143551. The next prime is 135143611. The reversal of 135143556 is 655341531.

It is not an unprimeable number, because it can be changed into a prime (135143551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83241 + ... + 84848.

It is an arithmetic number, because the mean of its divisors is an integer number (13335140).

Almost surely, 2^135143556 is an apocalyptic number.

It is an amenable number.

135143556 is an abundant number, since it is smaller than the sum of its proper divisors (184899804).

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

135143556 is a wasteful number, since it uses less digits than its factorization.

135143556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168163 (or 168161 counting only the distinct ones).

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

The square root of 135143556 is about 11625.1260638326. The cubic root of 135143556 is about 513.1745546302.

The spelling of 135143556 in words is "one hundred thirty-five million, one hundred forty-three thousand, five hundred fifty-six".