19130609 has 4 divisors (see below), whose sum is σ = 19183104. Its totient is φ = 19078116.

The previous prime is 19130603. The next prime is 19130611. The reversal of 19130609 is 90603191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19130609 - 2¹⁶ = 19065073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19130603) 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 3 ways as a sum of consecutive naturals, for example, 25697 + ... + 26430.

It is an arithmetic number, because the mean of its divisors is an integer number (4795776).

Almost surely, 2^19130609 is an apocalyptic number.

It is an amenable number.

19130609 is a deficient number, since it is larger than the sum of its proper divisors (52495).

19130609 is an equidigital number, since it uses as much as digits as its factorization.

19130609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52494.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 19130609 is about 4373.8551644973. The cubic root of 19130609 is about 267.4502029761.

The spelling of 19130609 in words is "nineteen million, one hundred thirty thousand, six hundred nine".