105412138 has 32 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 45131520.

The previous prime is 105412127. The next prime is 105412169. The reversal of 105412138 is 831214501.

It is a super-2 number, since 2×105412138² = 22223437675462088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29703 + ... + 33061.

It is an arithmetic number, because the mean of its divisors is an integer number (5715360).

Almost surely, 2^105412138 is an apocalyptic number.

105412138 is a deficient number, since it is larger than the sum of its proper divisors (77479382).

105412138 is a wasteful number, since it uses less digits than its factorization.

105412138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 105412138 is about 10267.0413459769. The cubic root of 105412138 is about 472.3858432914.

Adding to 105412138 its reverse (831214501), we get a palindrome (936626639).

The spelling of 105412138 in words is "one hundred five million, four hundred twelve thousand, one hundred thirty-eight".