19242133 has 2 divisors, whose sum is σ = 19242134. Its totient is φ = 19242132.

The previous prime is 19242121. The next prime is 19242137. The reversal of 19242133 is 33124291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18464209 + 777924 = 4297^2 + 882^2 .

It is an emirp because it is prime and its reverse (33124291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19242133 - 2⁵ = 19242101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19242098 and 19242107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19242137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9621066 + 9621067.

It is an arithmetic number, because the mean of its divisors is an integer number (9621067).

Almost surely, 2^19242133 is an apocalyptic number.

It is an amenable number.

19242133 is a deficient number, since it is larger than the sum of its proper divisors (1).

19242133 is an equidigital number, since it uses as much as digits as its factorization.

19242133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 19242133 is about 4386.5855742251. The cubic root of 19242133 is about 267.9689065063.

The spelling of 19242133 in words is "nineteen million, two hundred forty-two thousand, one hundred thirty-three".