105445138 has 8 divisors (see below), whose sum is σ = 158213232. Its totient is φ = 52707396.

The previous prime is 105445129. The next prime is 105445139. The reversal of 105445138 is 831544501.

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

It is a super-2 number, since 2×105445138² = 22237354255678088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105445139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5881 + ... + 15667.

It is an arithmetic number, because the mean of its divisors is an integer number (19776654).

Almost surely, 2^105445138 is an apocalyptic number.

105445138 is a deficient number, since it is larger than the sum of its proper divisors (52768094).

105445138 is an equidigital number, since it uses as much as digits as its factorization.

105445138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15176.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 105445138 is about 10268.6483044264. The cubic root of 105445138 is about 472.4351327018.

Adding to 105445138 its reverse (831544501), we get a palindrome (936989639).

The spelling of 105445138 in words is "one hundred five million, four hundred forty-five thousand, one hundred thirty-eight".