109019499 has 4 divisors (see below), whose sum is σ = 145359336. Its totient is φ = 72679664.

The previous prime is 109019489. The next prime is 109019503. The reversal of 109019499 is 994910901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109019499 - 2⁸ = 109019243 is a prime.

It is a super-2 number, since 2×109019499² = 23770502324422002, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109019499.

It is not an unprimeable number, because it can be changed into a prime (109019429) 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, 18169914 + ... + 18169919.

It is an arithmetic number, because the mean of its divisors is an integer number (36339834).

Almost surely, 2^109019499 is an apocalyptic number.

109019499 is a deficient number, since it is larger than the sum of its proper divisors (36339837).

109019499 is an equidigital number, since it uses as much as digits as its factorization.

109019499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36339836.

The product of its (nonzero) digits is 26244, while the sum is 42.

The square root of 109019499 is about 10441.2402998877. The cubic root of 109019499 is about 477.7141007839.

The spelling of 109019499 in words is "one hundred nine million, nineteen thousand, four hundred ninety-nine".