136284142 has 4 divisors (see below), whose sum is σ = 204426216. Its totient is φ = 68142070.

The previous prime is 136284139. The next prime is 136284149. The reversal of 136284142 is 241482631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241482631 = 13 ⋅18575587.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136284149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34071034 + ... + 34071037.

It is an arithmetic number, because the mean of its divisors is an integer number (51106554).

Almost surely, 2^136284142 is an apocalyptic number.

136284142 is a deficient number, since it is larger than the sum of its proper divisors (68142074).

136284142 is an equidigital number, since it uses as much as digits as its factorization.

136284142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68142073.

The product of its digits is 9216, while the sum is 31.

The square root of 136284142 is about 11674.0799209188. The cubic root of 136284142 is about 514.6142107140.

The spelling of 136284142 in words is "one hundred thirty-six million, two hundred eighty-four thousand, one hundred forty-two".