109086445 has 16 divisors (see below), whose sum is σ = 144415152. Its totient is φ = 78589440.

The previous prime is 109086431. The next prime is 109086449. The reversal of 109086445 is 544680901.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41139396 + 67947049 = 6414^2 + 8243^2 .

It is not a de Polignac number, because 109086445 - 2⁵ = 109086413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109086449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17802 + ... + 23131.

It is an arithmetic number, because the mean of its divisors is an integer number (9025947).

Almost surely, 2^109086445 is an apocalyptic number.

It is an amenable number.

109086445 is a deficient number, since it is larger than the sum of its proper divisors (35328707).

109086445 is a wasteful number, since it uses less digits than its factorization.

109086445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40992.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 109086445 is about 10444.4456530732. The cubic root of 109086445 is about 477.8118646533.

The spelling of 109086445 in words is "one hundred nine million, eighty-six thousand, four hundred forty-five".