105422040145 has 8 divisors (see below), whose sum is σ = 127927869480. Its totient is φ = 83390017920.

The previous prime is 105422040137. The next prime is 105422040181. The reversal of 105422040145 is 541040224501.

It can be written as a sum of positive squares in 4 ways, for example, as 1214452801 + 104207587344 = 34849^2 + 322812^2 .

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

It is not a de Polignac number, because 105422040145 - 2³ = 105422040137 is a prime.

It is a super-2 number, since 2×105422040145² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118451286 + ... + 118452175.

It is an arithmetic number, because the mean of its divisors is an integer number (15990983685).

Almost surely, 2^105422040145 is an apocalyptic number.

It is an amenable number.

105422040145 is a deficient number, since it is larger than the sum of its proper divisors (22505829335).

105422040145 is an equidigital number, since it uses as much as digits as its factorization.

105422040145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236903555.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 105422040145 its reverse (541040224501), we get a palindrome (646462264646).

The spelling of 105422040145 in words is "one hundred five billion, four hundred twenty-two million, forty thousand, one hundred forty-five".