135444536 has 8 divisors (see below), whose sum is σ = 253958520. Its totient is φ = 67722264.

The previous prime is 135444523. The next prime is 135444557. The reversal of 135444536 is 635444531.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 135444496 and 135444505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8465276 + ... + 8465291.

It is an arithmetic number, because the mean of its divisors is an integer number (31744815).

Almost surely, 2^135444536 is an apocalyptic number.

It is an amenable number.

135444536 is a deficient number, since it is larger than the sum of its proper divisors (118513984).

135444536 is a wasteful number, since it uses less digits than its factorization.

135444536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16930573 (or 16930569 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The square root of 135444536 is about 11638.0641001844. The cubic root of 135444536 is about 513.5552381062. Note that the first 3 decimals are identical.

The spelling of 135444536 in words is "one hundred thirty-five million, four hundred forty-four thousand, five hundred thirty-six".