105173505142 has 32 divisors (see below), whose sum is σ = 165074327424. Its totient is φ = 50206262400.

The previous prime is 105173505127. The next prime is 105173505149. The reversal of 105173505142 is 241505371501.

It is a super-2 number, since 2×105173505142² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105173505098 and 105173505107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105173505149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1872723 + ... + 1928065.

It is an arithmetic number, because the mean of its divisors is an integer number (5158572732).

Almost surely, 2^105173505142 is an apocalyptic number.

105173505142 is a deficient number, since it is larger than the sum of its proper divisors (59900822282).

105173505142 is a wasteful number, since it uses less digits than its factorization.

105173505142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55864.

The product of its (nonzero) digits is 21000, while the sum is 34.

Adding to 105173505142 its reverse (241505371501), we get a palindrome (346678876643).

The spelling of 105173505142 in words is "one hundred five billion, one hundred seventy-three million, five hundred five thousand, one hundred forty-two".