136312143 has 8 divisors (see below), whose sum is σ = 198272256. Its totient is φ = 82613400.

The previous prime is 136312139. The next prime is 136312199. The reversal of 136312143 is 341213631.

It is a happy number.

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

It is not a de Polignac number, because 136312143 - 2² = 136312139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136312843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2065303 + ... + 2065368.

It is an arithmetic number, because the mean of its divisors is an integer number (24784032).

Almost surely, 2^136312143 is an apocalyptic number.

136312143 is a deficient number, since it is larger than the sum of its proper divisors (61960113).

136312143 is a wasteful number, since it uses less digits than its factorization.

136312143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130685.

The product of its digits is 1296, while the sum is 24.

The square root of 136312143 is about 11675.2791401319. The cubic root of 136312143 is about 514.6494525882.

Adding to 136312143 its reverse (341213631), we get a palindrome (477525774).

The spelling of 136312143 in words is "one hundred thirty-six million, three hundred twelve thousand, one hundred forty-three".