135543646 has 32 divisors (see below), whose sum is σ = 243233280. Its totient is φ = 55388256.

The previous prime is 135543619. The next prime is 135543719. The reversal of 135543646 is 646345531.

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 15 ways as a sum of consecutive naturals, for example, 163485 + ... + 164311.

It is an arithmetic number, because the mean of its divisors is an integer number (7601040).

Almost surely, 2^135543646 is an apocalyptic number.

135543646 is a deficient number, since it is larger than the sum of its proper divisors (107689634).

135543646 is a wasteful number, since it uses less digits than its factorization.

135543646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its digits is 129600, while the sum is 37.

The square root of 135543646 is about 11642.3213321056. The cubic root of 135543646 is about 513.6804703019.

The spelling of 135543646 in words is "one hundred thirty-five million, five hundred forty-three thousand, six hundred forty-six".