136135142251 has 2 divisors, whose sum is σ = 136135142252. Its totient is φ = 136135142250.

The previous prime is 136135142237. The next prime is 136135142321. The reversal of 136135142251 is 152241531631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136135142251 - 2⁹ = 136135141739 is a prime.

It is not a weakly prime, because it can be changed into another prime (136135142651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68067571125 + 68067571126.

It is an arithmetic number, because the mean of its divisors is an integer number (68067571126).

Almost surely, 2^136135142251 is an apocalyptic number.

136135142251 is a deficient number, since it is larger than the sum of its proper divisors (1).

136135142251 is an equidigital number, since it uses as much as digits as its factorization.

136135142251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

Adding to 136135142251 its reverse (152241531631), we get a palindrome (288376673882).

The spelling of 136135142251 in words is "one hundred thirty-six billion, one hundred thirty-five million, one hundred forty-two thousand, two hundred fifty-one".