109020913 has 4 divisors (see below), whose sum is σ = 109058020. Its totient is φ = 108983808.

The previous prime is 109020911. The next prime is 109020941. The reversal of 109020913 is 319020901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319020901 = 223 ⋅1430587.

It can be written as a sum of positive squares in 2 ways, for example, as 101364624 + 7656289 = 10068^2 + 2767^2 .

It is a cyclic number.

It is not a de Polignac number, because 109020913 - 2¹ = 109020911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109020911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13728 + ... + 20161.

It is an arithmetic number, because the mean of its divisors is an integer number (27264505).

Almost surely, 2^109020913 is an apocalyptic number.

It is an amenable number.

109020913 is a deficient number, since it is larger than the sum of its proper divisors (37107).

109020913 is an equidigital number, since it uses as much as digits as its factorization.

109020913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37106.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 109020913 is about 10441.3080119303. The cubic root of 109020913 is about 477.7161661173.

The spelling of 109020913 in words is "one hundred nine million, twenty thousand, nine hundred thirteen".