108445221 has 6 divisors (see below), whose sum is σ = 156643110. Its totient is φ = 72296808.

The previous prime is 108445219. The next prime is 108445229. The reversal of 108445221 is 122544801.

It can be written as a sum of positive squares in only one way, i.e., 90041121 + 18404100 = 9489^2 + 4290^2 .

It is not a de Polignac number, because 108445221 - 2¹ = 108445219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108445229) 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, 6024726 + ... + 6024743.

It is an arithmetic number, because the mean of its divisors is an integer number (26107185).

Almost surely, 2^108445221 is an apocalyptic number.

It is an amenable number.

108445221 is a deficient number, since it is larger than the sum of its proper divisors (48197889).

108445221 is a wasteful number, since it uses less digits than its factorization.

108445221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12049475 (or 12049472 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 108445221 is about 10413.7035198819. The cubic root of 108445221 is about 476.8738112729.

The spelling of 108445221 in words is "one hundred eight million, four hundred forty-five thousand, two hundred twenty-one".