108019969 has 4 divisors (see below), whose sum is σ = 108361044. Its totient is φ = 107678896.

The previous prime is 108019957. The next prime is 108020021. The reversal of 108019969 is 969910801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12215025 + 95804944 = 3495^2 + 9788^2 .

It is a cyclic number.

It is not a de Polignac number, because 108019969 - 2¹³ = 108011777 is a prime.

It is a super-2 number, since 2×108019969² = 23336627405521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108019069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170062 + ... + 170695.

It is an arithmetic number, because the mean of its divisors is an integer number (27090261).

Almost surely, 2^108019969 is an apocalyptic number.

It is an amenable number.

108019969 is a deficient number, since it is larger than the sum of its proper divisors (341075).

108019969 is an equidigital number, since it uses as much as digits as its factorization.

108019969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341074.

The product of its (nonzero) digits is 34992, while the sum is 43.

The square root of 108019969 is about 10393.2655599672. The cubic root of 108019969 is about 476.2496645332.

The spelling of 108019969 in words is "one hundred eight million, nineteen thousand, nine hundred sixty-nine".