164254314281 has 2 divisors, whose sum is σ = 164254314282. Its totient is φ = 164254314280.

The previous prime is 164254314253. The next prime is 164254314299. The reversal of 164254314281 is 182413452461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120381241600 + 43873072681 = 346960^2 + 209459^2 .

It is a cyclic number.

It is not a de Polignac number, because 164254314281 - 2¹⁰ = 164254313257 is a prime.

It is a super-2 number, since 2×164254314281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164254314881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82127157140 + 82127157141.

It is an arithmetic number, because the mean of its divisors is an integer number (82127157141).

Almost surely, 2^164254314281 is an apocalyptic number.

It is an amenable number.

164254314281 is a deficient number, since it is larger than the sum of its proper divisors (1).

164254314281 is an equidigital number, since it uses as much as digits as its factorization.

164254314281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 41.

The spelling of 164254314281 in words is "one hundred sixty-four billion, two hundred fifty-four million, three hundred fourteen thousand, two hundred eighty-one".