109193619 has 16 divisors (see below), whose sum is σ = 151197984. Its totient is φ = 70041600.

The previous prime is 109193611. The next prime is 109193629. The reversal of 109193619 is 916391901.

It is a happy number.

It is not a de Polignac number, because 109193619 - 2³ = 109193611 is a prime.

It is a super-2 number, since 2×109193619² = 23846492860634322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109193611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2899 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (9449874).

Almost surely, 2^109193619 is an apocalyptic number.

109193619 is a deficient number, since it is larger than the sum of its proper divisors (42004365).

109193619 is a wasteful number, since it uses less digits than its factorization.

109193619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12278.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 109193619 is about 10449.5750631306. The cubic root of 109193619 is about 477.9682918108.

The spelling of 109193619 in words is "one hundred nine million, one hundred ninety-three thousand, six hundred nineteen".