154133366271217 has 2 divisors, whose sum is σ = 154133366271218. Its totient is φ = 154133366271216.

The previous prime is 154133366271173. The next prime is 154133366271257. The reversal of 154133366271217 is 712172663331451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118528706893921 + 35604659377296 = 10887089^2 + 5966964^2 .

It is a cyclic number.

It is not a de Polignac number, because 154133366271217 - 2¹⁹ = 154133365746929 is a prime.

It is a super-2 number, since 2×154133366271217² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154133366271257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77066683135608 + 77066683135609.

It is an arithmetic number, because the mean of its divisors is an integer number (77066683135609).

Almost surely, 2^{154133366271217} is an apocalyptic number.

It is an amenable number.

154133366271217 is a deficient number, since it is larger than the sum of its proper divisors (1).

154133366271217 is an equidigital number, since it uses as much as digits as its factorization.

154133366271217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 52.

The spelling of 154133366271217 in words is "one hundred fifty-four trillion, one hundred thirty-three billion, three hundred sixty-six million, two hundred seventy-one thousand, two hundred seventeen".