135606444 has 12 divisors (see below), whose sum is σ = 316415064. Its totient is φ = 45202144.

The previous prime is 135606437. The next prime is 135606451. The reversal of 135606444 is 444606531.

It is an interprime number because it is at equal distance from previous prime (135606437) and next prime (135606451).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5650257 + ... + 5650280.

It is an arithmetic number, because the mean of its divisors is an integer number (26367922).

Almost surely, 2^135606444 is an apocalyptic number.

It is an amenable number.

135606444 is an abundant number, since it is smaller than the sum of its proper divisors (180808620).

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

135606444 is a wasteful number, since it uses less digits than its factorization.

135606444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11300544 (or 11300542 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 135606444 is about 11645.0179905400. The cubic root of 135606444 is about 513.7597882353.

The spelling of 135606444 in words is "one hundred thirty-five million, six hundred six thousand, four hundred forty-four".