109072513 has 4 divisors (see below), whose sum is σ = 118988208. Its totient is φ = 99156820.

The previous prime is 109072511. The next prime is 109072519. The reversal of 109072513 is 315270901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315270901 = 11 ⋅28660991.

It is a cyclic number.

It is not a de Polignac number, because 109072513 - 2¹ = 109072511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109072511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4957831 + ... + 4957852.

It is an arithmetic number, because the mean of its divisors is an integer number (29747052).

Almost surely, 2^109072513 is an apocalyptic number.

It is an amenable number.

109072513 is a deficient number, since it is larger than the sum of its proper divisors (9915695).

109072513 is an equidigital number, since it uses as much as digits as its factorization.

109072513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9915694.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 109072513 is about 10443.7786744071. The cubic root of 109072513 is about 477.7915225039.

The spelling of 109072513 in words is "one hundred nine million, seventy-two thousand, five hundred thirteen".