109361969 has 4 divisors (see below), whose sum is σ = 115795044. Its totient is φ = 102928896.

The previous prime is 109361953. The next prime is 109362007. The reversal of 109361969 is 969163901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 969163901 = 19853 ⋅48817.

It can be written as a sum of positive squares in 2 ways, for example, as 72880369 + 36481600 = 8537^2 + 6040^2 .

It is a cyclic number.

It is not a de Polignac number, because 109361969 - 2⁴ = 109361953 is a prime.

It is a super-2 number, since 2×109361969² = 23920080527113922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109361909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3216512 + ... + 3216545.

It is an arithmetic number, because the mean of its divisors is an integer number (28948761).

Almost surely, 2^109361969 is an apocalyptic number.

It is an amenable number.

109361969 is a deficient number, since it is larger than the sum of its proper divisors (6433075).

109361969 is an equidigital number, since it uses as much as digits as its factorization.

109361969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433074.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 109361969 is about 10457.6273121583. The cubic root of 109361969 is about 478.2138026293.

The spelling of 109361969 in words is "one hundred nine million, three hundred sixty-one thousand, nine hundred sixty-nine".