109743819 has 8 divisors (see below), whose sum is σ = 148724112. Its totient is φ = 71963040.

The previous prime is 109743811. The next prime is 109743827. The reversal of 109743819 is 918347901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (109743811) and next prime (109743827).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 109743819 - 2³ = 109743811 is a prime.

It is a super-2 number, since 2×109743819² = 24087411617409522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109743811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299664 + ... + 300029.

It is an arithmetic number, because the mean of its divisors is an integer number (18590514).

Almost surely, 2^109743819 is an apocalyptic number.

109743819 is a deficient number, since it is larger than the sum of its proper divisors (38980293).

109743819 is an equidigital number, since it uses as much as digits as its factorization.

109743819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599757.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 109743819 is about 10475.8684126902. The cubic root of 109743819 is about 478.7697357493.

The spelling of 109743819 in words is "one hundred nine million, seven hundred forty-three thousand, eight hundred nineteen".