136535143 has 16 divisors (see below), whose sum is σ = 149697504. Its totient is φ = 124001280.

The previous prime is 136535137. The next prime is 136535171. The reversal of 136535143 is 341535631.

It is a cyclic number.

It is not a de Polignac number, because 136535143 - 2⁵ = 136535111 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 (136535543) by changing a digit.

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, 81571 + ... + 83227.

It is an arithmetic number, because the mean of its divisors is an integer number (9356094).

Almost surely, 2^136535143 is an apocalyptic number.

136535143 is a deficient number, since it is larger than the sum of its proper divisors (13162361).

136535143 is a wasteful number, since it uses less digits than its factorization.

136535143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842.

The product of its digits is 16200, while the sum is 31.

The square root of 136535143 is about 11684.8253303162. The cubic root of 136535143 is about 514.9299467978.

The spelling of 136535143 in words is "one hundred thirty-six million, five hundred thirty-five thousand, one hundred forty-three".