106618445 has 4 divisors (see below), whose sum is σ = 127942140. Its totient is φ = 85294752.

The previous prime is 106618427. The next prime is 106618489. The reversal of 106618445 is 544816601.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 84584809 = 4694^2 + 9197^2 .

It is a cyclic number.

It is not a de Polignac number, because 106618445 - 2⁶ = 106618381 is a prime.

It is a super-2 number, since 2×106618445² = 22734985628436050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10661840 + ... + 10661849.

It is an arithmetic number, because the mean of its divisors is an integer number (31985535).

Almost surely, 2^106618445 is an apocalyptic number.

It is an amenable number.

106618445 is a deficient number, since it is larger than the sum of its proper divisors (21323695).

106618445 is an equidigital number, since it uses as much as digits as its factorization.

106618445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21323694.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 106618445 is about 10325.6208045812. The cubic root of 106618445 is about 474.1809634418.

The spelling of 106618445 in words is "one hundred six million, six hundred eighteen thousand, four hundred forty-five".