19139099 has 16 divisors (see below), whose sum is σ = 23201280. Its totient is φ = 15422400.

The previous prime is 19139089. The next prime is 19139111. The reversal of 19139099 is 99093191.

It is not a de Polignac number, because 19139099 - 2⁸ = 19138843 is a prime.

It is a super-2 number, since 2×19139099² = 732610221063602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (19139009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19607 + ... + 20559.

It is an arithmetic number, because the mean of its divisors is an integer number (1450080).

Almost surely, 2^19139099 is an apocalyptic number.

19139099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

19139099 is a deficient number, since it is larger than the sum of its proper divisors (4062181).

19139099 is a wasteful number, since it uses less digits than its factorization.

19139099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130.

The product of its (nonzero) digits is 19683, while the sum is 41.

The square root of 19139099 is about 4374.8255965238. The cubic root of 19139099 is about 267.4897611593.

The spelling of 19139099 in words is "nineteen million, one hundred thirty-nine thousand, ninety-nine".