162273467281 has 2 divisors, whose sum is σ = 162273467282. Its totient is φ = 162273467280.

The previous prime is 162273467263. The next prime is 162273467329. The reversal of 162273467281 is 182764372261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157834576656 + 4438890625 = 397284^2 + 66625^2 .

It is a cyclic number.

It is not a de Polignac number, because 162273467281 - 2²⁷ = 162139249553 is a prime.

It is a super-2 number, since 2×162273467281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (162573467281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81136733640 + 81136733641.

It is an arithmetic number, because the mean of its divisors is an integer number (81136733641).

Almost surely, 2^162273467281 is an apocalyptic number.

It is an amenable number.

162273467281 is a deficient number, since it is larger than the sum of its proper divisors (1).

162273467281 is an equidigital number, since it uses as much as digits as its factorization.

162273467281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 49.

The spelling of 162273467281 in words is "one hundred sixty-two billion, two hundred seventy-three million, four hundred sixty-seven thousand, two hundred eighty-one".