109206106 has 4 divisors (see below), whose sum is σ = 163809162. Its totient is φ = 54603052.

The previous prime is 109206089. The next prime is 109206107. The reversal of 109206106 is 601602901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601602901 = 1877 ⋅320513.

It can be written as a sum of positive squares in only one way, i.e., 97199881 + 12006225 = 9859^2 + 3465^2 .

It is not an unprimeable number, because it can be changed into a prime (109206107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27301525 + ... + 27301528.

Almost surely, 2^109206106 is an apocalyptic number.

109206106 is a deficient number, since it is larger than the sum of its proper divisors (54603056).

109206106 is an equidigital number, since it uses as much as digits as its factorization.

109206106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54603055.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 109206106 is about 10450.1725344609. The cubic root of 109206106 is about 477.9865107098.

The spelling of 109206106 in words is "one hundred nine million, two hundred six thousand, one hundred six".