109075072 has 16 divisors (see below), whose sum is σ = 217298250. Its totient is φ = 54537472.

The previous prime is 109075069. The next prime is 109075073. The reversal of 109075072 is 270570901.

It can be written as a sum of positive squares in only one way, i.e., 75620416 + 33454656 = 8696^2 + 5784^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (109075073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425947 + ... + 426202.

Almost surely, 2^109075072 is an apocalyptic number.

109075072 is the 5583-rd centered heptagonal number.

It is an amenable number.

109075072 is a deficient number, since it is larger than the sum of its proper divisors (108223178).

109075072 is an frugal number, since it uses more digits than its factorization.

109075072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852163 (or 852151 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 109075072 is about 10443.9011868171. The cubic root of 109075072 is about 477.7952590363.

The spelling of 109075072 in words is "one hundred nine million, seventy-five thousand, seventy-two".