135617784143 has 16 divisors (see below), whose sum is σ = 140868317184. Its totient is φ = 130468721760.

The previous prime is 135617784119. The next prime is 135617784157. The reversal of 135617784143 is 341487716531.

It is a cyclic number.

It is not a de Polignac number, because 135617784143 - 2¹⁴ = 135617767759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135617784091 and 135617784100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135617784343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477496 + ... + 4507682.

It is an arithmetic number, because the mean of its divisors is an integer number (8804269824).

Almost surely, 2^135617784143 is an apocalyptic number.

135617784143 is a deficient number, since it is larger than the sum of its proper divisors (5250533041).

135617784143 is a wasteful number, since it uses less digits than its factorization.

135617784143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31862.

The product of its digits is 1693440, while the sum is 50.

The spelling of 135617784143 in words is "one hundred thirty-five billion, six hundred seventeen million, seven hundred eighty-four thousand, one hundred forty-three".