19128413 has 2 divisors, whose sum is σ = 19128414. Its totient is φ = 19128412.

The previous prime is 19128397. The next prime is 19128419. The reversal of 19128413 is 31482191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 9406489 = 3118^2 + 3067^2 .

It is a cyclic number.

It is not a de Polignac number, because 19128413 - 2⁴ = 19128397 is a prime.

It is a super-3 number, since 3×19128413³ (a number of 23 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19128419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9564206 + 9564207.

It is an arithmetic number, because the mean of its divisors is an integer number (9564207).

Almost surely, 2^19128413 is an apocalyptic number.

It is an amenable number.

19128413 is a deficient number, since it is larger than the sum of its proper divisors (1).

19128413 is an equidigital number, since it uses as much as digits as its factorization.

19128413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 29.

The square root of 19128413 is about 4373.6041201737. The cubic root of 19128413 is about 267.4399690604.

The spelling of 19128413 in words is "nineteen million, one hundred twenty-eight thousand, four hundred thirteen".