109031719 has 4 divisors (see below), whose sum is σ = 110032120. Its totient is φ = 108031320.

The previous prime is 109031717. The next prime is 109031723. The reversal of 109031719 is 917130901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917130901 = 73 ⋅12563437.

It is a cyclic number.

It is not a de Polignac number, because 109031719 - 2¹ = 109031717 is a prime.

It is a super-2 number, since 2×109031719² = 23775831496189922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109031717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500037 + ... + 500254.

It is an arithmetic number, because the mean of its divisors is an integer number (27508030).

Almost surely, 2^109031719 is an apocalyptic number.

109031719 is a deficient number, since it is larger than the sum of its proper divisors (1000401).

109031719 is a wasteful number, since it uses less digits than its factorization.

109031719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000400.

The product of its (nonzero) digits is 1701, while the sum is 31.

The square root of 109031719 is about 10441.8254630117. The cubic root of 109031719 is about 477.7319491146.

The spelling of 109031719 in words is "one hundred nine million, thirty-one thousand, seven hundred nineteen".