254133543210161 has 2 divisors, whose sum is σ = 254133543210162. Its totient is φ = 254133543210160.

The previous prime is 254133543210137. The next prime is 254133543210233. The reversal of 254133543210161 is 161012345331452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184512558931600 + 69620984278561 = 13583540^2 + 8343919^2 .

It is a cyclic number.

It is not a de Polignac number, because 254133543210161 - 2⁶ = 254133543210097 is a prime.

It is not a weakly prime, because it can be changed into another prime (254133543210461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127066771605080 + 127066771605081.

It is an arithmetic number, because the mean of its divisors is an integer number (127066771605081).

Almost surely, 2^{254133543210161} is an apocalyptic number.

It is an amenable number.

254133543210161 is a deficient number, since it is larger than the sum of its proper divisors (1).

254133543210161 is an equidigital number, since it uses as much as digits as its factorization.

254133543210161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 254133543210161 in words is "two hundred fifty-four trillion, one hundred thirty-three billion, five hundred forty-three million, two hundred ten thousand, one hundred sixty-one".