19014013 has 4 divisors (see below), whose sum is σ = 19281888. Its totient is φ = 18746140.

The previous prime is 19013999. The next prime is 19014019. The reversal of 19014013 is 31041091.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31041091 = 823 ⋅37717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19014013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19014019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133831 + ... + 133972.

It is an arithmetic number, because the mean of its divisors is an integer number (4820472).

Almost surely, 2^19014013 is an apocalyptic number.

It is an amenable number.

19014013 is a deficient number, since it is larger than the sum of its proper divisors (267875).

19014013 is an equidigital number, since it uses as much as digits as its factorization.

19014013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267874.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 19014013 is about 4360.5060486141. The cubic root of 19014013 is about 266.9057492993.

The spelling of 19014013 in words is "nineteen million, fourteen thousand, thirteen".