106440106 has 4 divisors (see below), whose sum is σ = 159660162. Its totient is φ = 53220052.

The previous prime is 106440091. The next prime is 106440107. The reversal of 106440106 is 601044601.

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., 88454025 + 17986081 = 9405^2 + 4241^2 .

It is a super-2 number, since 2×106440106² = 22658992330582472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (106440107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26610025 + ... + 26610028.

Almost surely, 2^106440106 is an apocalyptic number.

106440106 is a deficient number, since it is larger than the sum of its proper divisors (53220056).

106440106 is an equidigital number, since it uses as much as digits as its factorization.

106440106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53220055.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 106440106 is about 10316.9814383859. The cubic root of 106440106 is about 473.9164308747.

Adding to 106440106 its reverse (601044601), we get a palindrome (707484707).

The spelling of 106440106 in words is "one hundred six million, four hundred forty thousand, one hundred six".