135250166251 has 2 divisors, whose sum is σ = 135250166252. Its totient is φ = 135250166250.

The previous prime is 135250166213. The next prime is 135250166279. The reversal of 135250166251 is 152661052531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135250166251 - 2²⁵ = 135216611819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135250166251.

It is not a weakly prime, because it can be changed into another prime (135250160251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67625083125 + 67625083126.

It is an arithmetic number, because the mean of its divisors is an integer number (67625083126).

Almost surely, 2^135250166251 is an apocalyptic number.

135250166251 is a deficient number, since it is larger than the sum of its proper divisors (1).

135250166251 is an equidigital number, since it uses as much as digits as its factorization.

135250166251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 135250166251 in words is "one hundred thirty-five billion, two hundred fifty million, one hundred sixty-six thousand, two hundred fifty-one".