229099919 has 2 divisors, whose sum is σ = 229099920. Its totient is φ = 229099918.

The previous prime is 229099873. The next prime is 229099961. The reversal of 229099919 is 919990922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229099919 - 2²⁴ = 212322703 is a prime.

It is a super-2 number, since 2×229099919² = 104973545771613122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229099979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114549959 + 114549960.

It is an arithmetic number, because the mean of its divisors is an integer number (114549960).

Almost surely, 2^229099919 is an apocalyptic number.

229099919 is a deficient number, since it is larger than the sum of its proper divisors (1).

229099919 is an equidigital number, since it uses as much as digits as its factorization.

229099919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 50.

The square root of 229099919 is about 15136.0470070623. The cubic root of 229099919 is about 611.8922865312.

The spelling of 229099919 in words is "two hundred twenty-nine million, ninety-nine thousand, nine hundred nineteen".