19089229 has 2 divisors, whose sum is σ = 19089230. Its totient is φ = 19089228.

The previous prime is 19089223. The next prime is 19089233. The reversal of 19089229 is 92298091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18275625 + 813604 = 4275^2 + 902^2 .

It is a cyclic number.

It is not a de Polignac number, because 19089229 - 2⁹ = 19088717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19089191 and 19089200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19089223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9544614 + 9544615.

It is an arithmetic number, because the mean of its divisors is an integer number (9544615).

Almost surely, 2^19089229 is an apocalyptic number.

It is an amenable number.

19089229 is a deficient number, since it is larger than the sum of its proper divisors (1).

19089229 is an equidigital number, since it uses as much as digits as its factorization.

19089229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 19089229 is about 4369.1222230558. The cubic root of 19089229 is about 267.2572298814.

The spelling of 19089229 in words is "nineteen million, eighty-nine thousand, two hundred twenty-nine".