136135142243 has 16 divisors (see below), whose sum is σ = 141095092320. Its totient is φ = 131259206400.

The previous prime is 136135142237. The next prime is 136135142251. The reversal of 136135142243 is 342241531631.

It is a cyclic number.

It is not a de Polignac number, because 136135142243 - 2¹⁴ = 136135125859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136135145243) 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, 1810073 + ... + 1883781.

It is an arithmetic number, because the mean of its divisors is an integer number (8818443270).

Almost surely, 2^136135142243 is an apocalyptic number.

136135142243 is a deficient number, since it is larger than the sum of its proper divisors (4959950077).

136135142243 is a wasteful number, since it uses less digits than its factorization.

136135142243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74278.

The product of its digits is 51840, while the sum is 35.

Adding to 136135142243 its reverse (342241531631), we get a palindrome (478376673874).

The spelling of 136135142243 in words is "one hundred thirty-six billion, one hundred thirty-five million, one hundred forty-two thousand, two hundred forty-three".