109223971 has 4 divisors (see below), whose sum is σ = 109521952. Its totient is φ = 108925992.

The previous prime is 109223957. The next prime is 109223993. The reversal of 109223971 is 179322901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109223971 - 2¹³ = 109215779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109223921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148440 + ... + 149173.

It is an arithmetic number, because the mean of its divisors is an integer number (27380488).

Almost surely, 2^109223971 is an apocalyptic number.

109223971 is a deficient number, since it is larger than the sum of its proper divisors (297981).

109223971 is an equidigital number, since it uses as much as digits as its factorization.

109223971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297980.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 109223971 is about 10451.0272700821. The cubic root of 109223971 is about 478.0125738539.

The spelling of 109223971 in words is "one hundred nine million, two hundred twenty-three thousand, nine hundred seventy-one".