19242101 has 2 divisors, whose sum is σ = 19242102. Its totient is φ = 19242100.

The previous prime is 19242073. The next prime is 19242107. The reversal of 19242101 is 10124291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18054001 + 1188100 = 4249^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 19242101 - 2¹⁰ = 19241077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19242107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9621050 + 9621051.

It is an arithmetic number, because the mean of its divisors is an integer number (9621051).

Almost surely, 2^19242101 is an apocalyptic number.

It is an amenable number.

19242101 is a deficient number, since it is larger than the sum of its proper divisors (1).

19242101 is an equidigital number, since it uses as much as digits as its factorization.

19242101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 19242101 is about 4386.5819267398. The cubic root of 19242101 is about 267.9687579605.

Adding to 19242101 its reverse (10124291), we get a palindrome (29366392).

The spelling of 19242101 in words is "nineteen million, two hundred forty-two thousand, one hundred one".