109427945 has 16 divisors (see below), whose sum is σ = 144676800. Its totient is φ = 78792000.

The previous prime is 109427939. The next prime is 109427993. The reversal of 109427945 is 549724901.

It is not a de Polignac number, because 109427945 - 2²² = 105233641 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4295 + ... + 15404.

It is an arithmetic number, because the mean of its divisors is an integer number (9042300).

Almost surely, 2^109427945 is an apocalyptic number.

It is an amenable number.

109427945 is a deficient number, since it is larger than the sum of its proper divisors (35248855).

109427945 is a wasteful number, since it uses less digits than its factorization.

109427945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19816.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 109427945 is about 10460.7812805736. The cubic root of 109427945 is about 478.3099490673.

The spelling of 109427945 in words is "one hundred nine million, four hundred twenty-seven thousand, nine hundred forty-five".