106203609 has 16 divisors (see below), whose sum is σ = 158870400. Its totient is φ = 70113168.

The previous prime is 106203589. The next prime is 106203619. The reversal of 106203609 is 906302601.

It is a happy number.

106203609 is a `hidden beast` number, since 1 + 0 + 620 + 36 + 0 + 9 = 666.

It is not a de Polignac number, because 106203609 - 2⁵ = 106203577 is a prime.

It is a super-2 number, since 2×106203609² = 22558413129249762, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (106203619) by changing a digit.

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, 16314 + ... + 21875.

It is an arithmetic number, because the mean of its divisors is an integer number (9929400).

Almost surely, 2^106203609 is an apocalyptic number.

It is an amenable number.

106203609 is a deficient number, since it is larger than the sum of its proper divisors (52666791).

106203609 is a wasteful number, since it uses less digits than its factorization.

106203609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38301 (or 38295 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 106203609 is about 10305.5135243228. The cubic root of 106203609 is about 473.5651756626.

The spelling of 106203609 in words is "one hundred six million, two hundred three thousand, six hundred nine".