109202945 has 8 divisors (see below), whose sum is σ = 131123880. Its totient is φ = 87308800.

The previous prime is 109202941. The next prime is 109202953. The reversal of 109202945 is 549202901.

It can be written as a sum of positive squares in 4 ways, for example, as 543169 + 108659776 = 737^2 + 10424^2 .

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

It is not a de Polignac number, because 109202945 - 2² = 109202941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109202941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3761 + ... + 15249.

It is an arithmetic number, because the mean of its divisors is an integer number (16390485).

Almost surely, 2^109202945 is an apocalyptic number.

It is an amenable number.

109202945 is a deficient number, since it is larger than the sum of its proper divisors (21920935).

109202945 is a wasteful number, since it uses less digits than its factorization.

109202945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13395.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 109202945 is about 10450.0212918443. The cubic root of 109202945 is about 477.9818988495.

The spelling of 109202945 in words is "one hundred nine million, two hundred two thousand, nine hundred forty-five".