109210849 has 6 divisors (see below), whose sum is σ = 120041810. Its totient is φ = 99282480.

The previous prime is 109210817. The next prime is 109210859. The reversal of 109210849 is 948012901.

It can be written as a sum of positive squares in only one way, i.e., 102414400 + 6796449 = 10120^2 + 2607^2 .

It is not a de Polignac number, because 109210849 - 2⁵ = 109210817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109210859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451164 + ... + 451405.

Almost surely, 2^109210849 is an apocalyptic number.

It is an amenable number.

109210849 is a deficient number, since it is larger than the sum of its proper divisors (10830961).

109210849 is an equidigital number, since it uses as much as digits as its factorization.

109210849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902591 (or 902580 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 109210849 is about 10450.3994660491. The cubic root of 109210849 is about 477.9934305219.

The spelling of 109210849 in words is "one hundred nine million, two hundred ten thousand, eight hundred forty-nine".