106661145 has 16 divisors (see below), whose sum is σ = 180696960. Its totient is φ = 53539584.

The previous prime is 106661089. The next prime is 106661153. The reversal of 106661145 is 541166601.

It is not a de Polignac number, because 106661145 - 2⁶ = 106661081 is a prime.

It is a super-2 number, since 2×106661145² = 22753199705422050, which contains 22 as substring.

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 in 15 ways as a sum of consecutive naturals, for example, 208885 + ... + 209394.

It is an arithmetic number, because the mean of its divisors is an integer number (11293560).

Almost surely, 2^106661145 is an apocalyptic number.

106661145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106661145 is a deficient number, since it is larger than the sum of its proper divisors (74035815).

106661145 is a wasteful number, since it uses less digits than its factorization.

106661145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418304.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 106661145 is about 10327.6882698889. The cubic root of 106661145 is about 474.2442571328.

It can be divided in two parts, 10666 and 1145, that added together give a palindrome (11811).

The spelling of 106661145 in words is "one hundred six million, six hundred sixty-one thousand, one hundred forty-five".