109028201 has 4 divisors (see below), whose sum is σ = 110521812. Its totient is φ = 107534592.

The previous prime is 109028173. The next prime is 109028221. The reversal of 109028201 is 102820901.

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 24019801 + 85008400 = 4901^2 + 9220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109028201 is a prime.

It is a super-2 number, since 2×109028201² = 23774297226592802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109028221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746696 + ... + 746841.

It is an arithmetic number, because the mean of its divisors is an integer number (27630453).

Almost surely, 2^109028201 is an apocalyptic number.

It is an amenable number.

109028201 is a deficient number, since it is larger than the sum of its proper divisors (1493611).

109028201 is an equidigital number, since it uses as much as digits as its factorization.

109028201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493610.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 109028201 is about 10441.6570045180. The cubic root of 109028201 is about 477.7268109185.

The spelling of 109028201 in words is "one hundred nine million, twenty-eight thousand, two hundred one".