19124213 has 2 divisors, whose sum is σ = 19124214. Its totient is φ = 19124212.

The previous prime is 19124197. The next prime is 19124219. The reversal of 19124213 is 31242191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 6436369 = 3562^2 + 2537^2 .

It is an emirp because it is prime and its reverse (31242191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19124213 - 2⁴ = 19124197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19124219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9562106 + 9562107.

It is an arithmetic number, because the mean of its divisors is an integer number (9562107).

Almost surely, 2^19124213 is an apocalyptic number.

It is an amenable number.

19124213 is a deficient number, since it is larger than the sum of its proper divisors (1).

19124213 is an equidigital number, since it uses as much as digits as its factorization.

19124213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 19124213 is about 4373.1239406173. The cubic root of 19124213 is about 267.4203938158.

The spelling of 19124213 in words is "nineteen million, one hundred twenty-four thousand, two hundred thirteen".