136201440142 has 4 divisors (see below), whose sum is σ = 204302160216. Its totient is φ = 68100720070.

The previous prime is 136201440097. The next prime is 136201440143. The reversal of 136201440142 is 241044102631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241044102631 = 71 ⋅3394987361.

It is a super-3 number, since 3×136201440142³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136201440142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136201440143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34050360034 + ... + 34050360037.

It is an arithmetic number, because the mean of its divisors is an integer number (51075540054).

Almost surely, 2^136201440142 is an apocalyptic number.

136201440142 is a deficient number, since it is larger than the sum of its proper divisors (68100720074).

136201440142 is an equidigital number, since it uses as much as digits as its factorization.

136201440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68100720073.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 136201440142 its reverse (241044102631), we get a palindrome (377245542773).

The spelling of 136201440142 in words is "one hundred thirty-six billion, two hundred one million, four hundred forty thousand, one hundred forty-two".