135644543 has 8 divisors (see below), whose sum is σ = 138383856. Its totient is φ = 132912000.

The previous prime is 135644527. The next prime is 135644549. The reversal of 135644543 is 345446531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135644543 - 2⁴ = 135644527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135644549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62588 + ... + 64718.

It is an arithmetic number, because the mean of its divisors is an integer number (17297982).

Almost surely, 2^135644543 is an apocalyptic number.

135644543 is a deficient number, since it is larger than the sum of its proper divisors (2739313).

135644543 is a wasteful number, since it uses less digits than its factorization.

135644543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385.

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

The square root of 135644543 is about 11646.6537254269. The cubic root of 135644543 is about 513.8078978010.

The spelling of 135644543 in words is "one hundred thirty-five million, six hundred forty-four thousand, five hundred forty-three".