105254042 has 8 divisors (see below), whose sum is σ = 157974132. Its totient is φ = 52596000.

The previous prime is 105254041. The next prime is 105254059. The reversal of 105254042 is 240452501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79049881 + 26204161 = 8891^2 + 5119^2 .

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

It is a super-2 number, since 2×105254042² = 22156826714675528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105253999 and 105254017.

It is not an unprimeable number, because it can be changed into a prime (105254041) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 11009 + ... + 18212.

Almost surely, 2^105254042 is an apocalyptic number.

105254042 is a deficient number, since it is larger than the sum of its proper divisors (52720090).

105254042 is a wasteful number, since it uses less digits than its factorization.

105254042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31024.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 105254042 is about 10259.3392574766. The cubic root of 105254042 is about 472.1495653802.

The spelling of 105254042 in words is "one hundred five million, two hundred fifty-four thousand, forty-two".