106646042 has 4 divisors (see below), whose sum is σ = 159969066. Its totient is φ = 53323020.

The previous prime is 106646027. The next prime is 106646053. The reversal of 106646042 is 240646601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 94458961 + 12187081 = 9719^2 + 3491^2 .

It is a super-2 number, since 2×106646042² = 22746756548531528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106645996 and 106646014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26661509 + ... + 26661512.

Almost surely, 2^106646042 is an apocalyptic number.

106646042 is a deficient number, since it is larger than the sum of its proper divisors (53323024).

106646042 is an equidigital number, since it uses as much as digits as its factorization.

106646042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53323023.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 106646042 is about 10326.9570542343. The cubic root of 106646042 is about 474.2218720706.

The spelling of 106646042 in words is "one hundred six million, six hundred forty-six thousand, forty-two".