19149099 has 8 divisors (see below), whose sum is σ = 25965120. Its totient is φ = 12549576.

The previous prime is 19149083. The next prime is 19149113. The reversal of 19149099 is 99094191.

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

It is not a de Polignac number, because 19149099 - 2⁴ = 19149083 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 19149099.

It is not an unprimeable number, because it can be changed into a prime (19149079) 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, 53917 + ... + 54270.

It is an arithmetic number, because the mean of its divisors is an integer number (3245640).

Almost surely, 2^19149099 is an apocalyptic number.

19149099 is a deficient number, since it is larger than the sum of its proper divisors (6816021).

19149099 is a wasteful number, since it uses less digits than its factorization.

19149099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108249.

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

The square root of 19149099 is about 4375.9683499770. The cubic root of 19149099 is about 267.5363400130.

The spelling of 19149099 in words is "nineteen million, one hundred forty-nine thousand, ninety-nine".