105661042 has 8 divisors (see below), whose sum is σ = 159541632. Its totient is φ = 52480500.

The previous prime is 105661037. The next prime is 105661043. The reversal of 105661042 is 240166501.

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

It is a super-2 number, since 2×105661042² = 22328511593051528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105660998 and 105661016.

It is not an unprimeable number, because it can be changed into a prime (105661043) 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, 174634 + ... + 175237.

It is an arithmetic number, because the mean of its divisors is an integer number (19942704).

Almost surely, 2^105661042 is an apocalyptic number.

105661042 is a deficient number, since it is larger than the sum of its proper divisors (53880590).

105661042 is a wasteful number, since it uses less digits than its factorization.

105661042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350024.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105661042 is about 10279.1557046287. The cubic root of 105661042 is about 472.7573574430.

The spelling of 105661042 in words is "one hundred five million, six hundred sixty-one thousand, forty-two".