105238805181 has 8 divisors (see below), whose sum is σ = 140487672480. Its totient is φ = 70074570672.

The previous prime is 105238805179. The next prime is 105238805197. The reversal of 105238805181 is 181508832501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105238805181 - 2¹ = 105238805179 is a prime.

It is a super-2 number, since 2×105238805181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105238805131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21155295 + ... + 21160268.

It is an arithmetic number, because the mean of its divisors is an integer number (17560959060).

Almost surely, 2^105238805181 is an apocalyptic number.

It is an amenable number.

105238805181 is a deficient number, since it is larger than the sum of its proper divisors (35248867299).

105238805181 is an equidigital number, since it uses as much as digits as its factorization.

105238805181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42316395.

The product of its (nonzero) digits is 76800, while the sum is 42.

The spelling of 105238805181 in words is "one hundred five billion, two hundred thirty-eight million, eight hundred five thousand, one hundred eighty-one".