181260222143 has 24 divisors (see below), whose sum is σ = 247716277200. Its totient is φ = 130376977920.

The previous prime is 181260222097. The next prime is 181260222173. The reversal of 181260222143 is 341222062181.

It is not a de Polignac number, because 181260222143 - 2⁸ = 181260221887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181260222173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12927218 + ... + 12941231.

It is an arithmetic number, because the mean of its divisors is an integer number (10321511550).

Almost surely, 2^181260222143 is an apocalyptic number.

181260222143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

181260222143 is a deficient number, since it is larger than the sum of its proper divisors (66456055057).

181260222143 is a wasteful number, since it uses less digits than its factorization.

181260222143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25868487 (or 25868480 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The spelling of 181260222143 in words is "one hundred eighty-one billion, two hundred sixty million, two hundred twenty-two thousand, one hundred forty-three".