109931019 has 16 divisors (see below), whose sum is σ = 160080384. Its totient is φ = 66549600.

The previous prime is 109931009. The next prime is 109931047. The reversal of 109931019 is 910139901.

It is not a de Polignac number, because 109931019 - 2¹² = 109926923 is a prime.

It is a super-2 number, since 2×109931019² = 24169657876756722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (109931009) 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 15 ways as a sum of consecutive naturals, for example, 45789 + ... + 48129.

It is an arithmetic number, because the mean of its divisors is an integer number (10005024).

Almost surely, 2^109931019 is an apocalyptic number.

109931019 is a deficient number, since it is larger than the sum of its proper divisors (50149365).

109931019 is a wasteful number, since it uses less digits than its factorization.

109931019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 109931019 is about 10484.7994258355. The cubic root of 109931019 is about 479.0418081165.

The spelling of 109931019 in words is "one hundred nine million, nine hundred thirty-one thousand, nineteen".