105282138 has 32 divisors (see below), whose sum is σ = 234081792. Its totient is φ = 31348800.

The previous prime is 105282127. The next prime is 105282161. The reversal of 105282138 is 831282501.

It is a super-2 number, since 2×105282138² = 22168657163702088, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 19353 + ... + 24188.

It is an arithmetic number, because the mean of its divisors is an integer number (7315056).

Almost surely, 2^105282138 is an apocalyptic number.

105282138 is an abundant number, since it is smaller than the sum of its proper divisors (128799654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105282138 is a wasteful number, since it uses less digits than its factorization.

105282138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43590.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 105282138 is about 10260.7084550727. The cubic root of 105282138 is about 472.1915727425.

The spelling of 105282138 in words is "one hundred five million, two hundred eighty-two thousand, one hundred thirty-eight".