19128653 has 2 divisors, whose sum is σ = 19128654. Its totient is φ = 19128652.

The previous prime is 19128619. The next prime is 19128713. The reversal of 19128653 is 35682191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16024009 + 3104644 = 4003^2 + 1762^2 .

It is an emirp because it is prime and its reverse (35682191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19128653 - 2⁶ = 19128589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19128353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9564326 + 9564327.

It is an arithmetic number, because the mean of its divisors is an integer number (9564327).

Almost surely, 2^19128653 is an apocalyptic number.

It is an amenable number.

19128653 is a deficient number, since it is larger than the sum of its proper divisors (1).

19128653 is an equidigital number, since it uses as much as digits as its factorization.

19128653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 19128653 is about 4373.6315574131. The cubic root of 19128653 is about 267.4410875593.

The spelling of 19128653 in words is "nineteen million, one hundred twenty-eight thousand, six hundred fifty-three".