109992945 has 8 divisors (see below), whose sum is σ = 175988736. Its totient is φ = 58662896.

The previous prime is 109992937. The next prime is 109992959. The reversal of 109992945 is 549299901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109992945 - 2³ = 109992937 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 109992894 and 109992903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3666417 + ... + 3666446.

It is an arithmetic number, because the mean of its divisors is an integer number (21998592).

Almost surely, 2^109992945 is an apocalyptic number.

109992945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109992945 is a deficient number, since it is larger than the sum of its proper divisors (65995791).

109992945 is an equidigital number, since it uses as much as digits as its factorization.

109992945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332871.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 109992945 is about 10487.7521423802. The cubic root of 109992945 is about 479.1317420124.

The spelling of 109992945 in words is "one hundred nine million, nine hundred ninety-two thousand, nine hundred forty-five".