105302042 has 4 divisors (see below), whose sum is σ = 157953066. Its totient is φ = 52651020.

The previous prime is 105302039. The next prime is 105302059. The reversal of 105302042 is 240203501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240203501 = 179 ⋅1341919.

It can be written as a sum of positive squares in only one way, i.e., 78872161 + 26429881 = 8881^2 + 5141^2 .

It is a super-2 number, since 2×105302042² = 22177040098739528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105302042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26325509 + ... + 26325512.

Almost surely, 2^105302042 is an apocalyptic number.

105302042 is a deficient number, since it is larger than the sum of its proper divisors (52651024).

105302042 is an equidigital number, since it uses as much as digits as its factorization.

105302042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52651023.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 105302042 is about 10261.6783227696. The cubic root of 105302042 is about 472.2213274221.

Adding to 105302042 its reverse (240203501), we get a palindrome (345505543).

The spelling of 105302042 in words is "one hundred five million, three hundred two thousand, forty-two".