181492280162 has 6 divisors (see below), whose sum is σ = 272239323969. Its totient is φ = 90745838840.

The previous prime is 181492280161. The next prime is 181492280183. The reversal of 181492280162 is 261082294181.

181492280162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 179700535921 + 1791744241 = 423911^2 + 42329^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=301241.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181492280161) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 451862 + ... + 753102.

Almost surely, 2^181492280162 is an apocalyptic number.

181492280162 is a deficient number, since it is larger than the sum of its proper divisors (90747043807).

181492280162 is an frugal number, since it uses more digits than its factorization.

181492280162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602484 (or 301243 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 181492280162 in words is "one hundred eighty-one billion, four hundred ninety-two million, two hundred eighty thousand, one hundred sixty-two".