19045013 has 8 divisors (see below), whose sum is σ = 20562528. Its totient is φ = 17535024.

The previous prime is 19045003. The next prime is 19045069. The reversal of 19045013 is 31054091.

It is a happy number.

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

It is not a de Polignac number, because 19045013 - 2⁴ = 19044997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19045013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19045003) 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 7 ways as a sum of consecutive naturals, for example, 4106 + ... + 7412.

It is an arithmetic number, because the mean of its divisors is an integer number (2570316).

Almost surely, 2^19045013 is an apocalyptic number.

19045013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19045013 is a deficient number, since it is larger than the sum of its proper divisors (1517515).

19045013 is a wasteful number, since it uses less digits than its factorization.

19045013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 19045013 is about 4364.0592342451. The cubic root of 19045013 is about 267.0507228280.

The spelling of 19045013 in words is "nineteen million, forty-five thousand, thirteen".