109393919 has 4 divisors (see below), whose sum is σ = 109437720. Its totient is φ = 109350120.

The previous prime is 109393909. The next prime is 109393927. The reversal of 109393919 is 919393901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 919393901 = 73 ⋅12594437.

It is a cyclic number.

It is not a de Polignac number, because 109393919 - 2¹² = 109389823 is a prime.

It is a super-2 number, since 2×109393919² = 23934059028357122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109393919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109393909) 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, 17912 + ... + 23229.

It is an arithmetic number, because the mean of its divisors is an integer number (27359430).

Almost surely, 2^109393919 is an apocalyptic number.

109393919 is a deficient number, since it is larger than the sum of its proper divisors (43801).

109393919 is an equidigital number, since it uses as much as digits as its factorization.

109393919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43800.

The product of its (nonzero) digits is 59049, while the sum is 44.

The square root of 109393919 is about 10459.1547937680. The cubic root of 109393919 is about 478.2603680044.

The spelling of 109393919 in words is "one hundred nine million, three hundred ninety-three thousand, nine hundred nineteen".