105181742227 has 4 divisors (see below), whose sum is σ = 107747150616. Its totient is φ = 102616333840.

The previous prime is 105181742207. The next prime is 105181742231. The reversal of 105181742227 is 722247181501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722247181501 = 4951 ⋅145879051.

It is a cyclic number.

It is not a de Polignac number, because 105181742227 - 2²³ = 105173353619 is a prime.

It is a super-2 number, since 2×105181742227² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105181742227.

It is not an unprimeable number, because it can be changed into a prime (105181742207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282704133 + ... + 1282704214.

It is an arithmetic number, because the mean of its divisors is an integer number (26936787654).

Almost surely, 2^105181742227 is an apocalyptic number.

105181742227 is a deficient number, since it is larger than the sum of its proper divisors (2565408389).

105181742227 is an equidigital number, since it uses as much as digits as its factorization.

105181742227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565408388.

The product of its (nonzero) digits is 62720, while the sum is 40.

The spelling of 105181742227 in words is "one hundred five billion, one hundred eighty-one million, seven hundred forty-two thousand, two hundred twenty-seven".