135634533416251 has 2 divisors, whose sum is σ = 135634533416252. Its totient is φ = 135634533416250.

The previous prime is 135634533416233. The next prime is 135634533416257. The reversal of 135634533416251 is 152614335436531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135634533416251 - 2⁵ = 135634533416219 is a prime.

It is not a weakly prime, because it can be changed into another prime (135634533416257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67817266708125 + 67817266708126.

It is an arithmetic number, because the mean of its divisors is an integer number (67817266708126).

Almost surely, 2^{135634533416251} is an apocalyptic number.

135634533416251 is a deficient number, since it is larger than the sum of its proper divisors (1).

135634533416251 is an equidigital number, since it uses as much as digits as its factorization.

135634533416251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664000, while the sum is 52.

The spelling of 135634533416251 in words is "one hundred thirty-five trillion, six hundred thirty-four billion, five hundred thirty-three million, four hundred sixteen thousand, two hundred fifty-one".