136111142 has 8 divisors (see below), whose sum is σ = 210752832. Its totient is φ = 65860200.

The previous prime is 136111139. The next prime is 136111147. The reversal of 136111142 is 241111631.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136111147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097609 + ... + 1097732.

It is an arithmetic number, because the mean of its divisors is an integer number (26344104).

Almost surely, 2^136111142 is an apocalyptic number.

136111142 is a deficient number, since it is larger than the sum of its proper divisors (74641690).

136111142 is a wasteful number, since it uses less digits than its factorization.

136111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195374.

The product of its digits is 144, while the sum is 20.

The square root of 136111142 is about 11666.6679904761. The cubic root of 136111142 is about 514.3963669386.

Adding to 136111142 its reverse (241111631), we get a palindrome (377222773).

The spelling of 136111142 in words is "one hundred thirty-six million, one hundred eleven thousand, one hundred forty-two".