19195229 has 2 divisors, whose sum is σ = 19195230. Its totient is φ = 19195228.

The previous prime is 19195219. The next prime is 19195259. The reversal of 19195229 is 92259191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18292729 + 902500 = 4277^2 + 950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19195229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19195192 and 19195201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19195219) 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, 9597614 + 9597615.

It is an arithmetic number, because the mean of its divisors is an integer number (9597615).

Almost surely, 2^19195229 is an apocalyptic number.

It is an amenable number.

19195229 is a deficient number, since it is larger than the sum of its proper divisors (1).

19195229 is an equidigital number, since it uses as much as digits as its factorization.

19195229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14580, while the sum is 38.

The square root of 19195229 is about 4381.2360128165. The cubic root of 19195229 is about 267.7509985802.

The spelling of 19195229 in words is "nineteen million, one hundred ninety-five thousand, two hundred twenty-nine".