109021173 has 32 divisors (see below), whose sum is σ = 157489920. Its totient is φ = 66908160.

The previous prime is 109021169. The next prime is 109021181. The reversal of 109021173 is 371120901.

It is not a de Polignac number, because 109021173 - 2² = 109021169 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109021163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251565 + ... + 251997.

It is an arithmetic number, because the mean of its divisors is an integer number (4921560).

Almost surely, 2^109021173 is an apocalyptic number.

It is an amenable number.

109021173 is a deficient number, since it is larger than the sum of its proper divisors (48468747).

109021173 is a wasteful number, since it uses less digits than its factorization.

109021173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 109021173 is about 10441.3204624703. The cubic root of 109021173 is about 477.7165458796.

The spelling of 109021173 in words is "one hundred nine million, twenty-one thousand, one hundred seventy-three".