229127389 has 2 divisors, whose sum is σ = 229127390. Its totient is φ = 229127388.

The previous prime is 229127387. The next prime is 229127399. The reversal of 229127389 is 983721922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157301764 + 71825625 = 12542^2 + 8475^2 .

It is a cyclic number.

It is not a de Polignac number, because 229127389 - 2¹ = 229127387 is a prime.

Together with 229127387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229127387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114563694 + 114563695.

It is an arithmetic number, because the mean of its divisors is an integer number (114563695).

Almost surely, 2^229127389 is an apocalyptic number.

It is an amenable number.

229127389 is a deficient number, since it is larger than the sum of its proper divisors (1).

229127389 is an equidigital number, since it uses as much as digits as its factorization.

229127389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 229127389 is about 15136.9544162622. The cubic root of 229127389 is about 611.9167416677.

The spelling of 229127389 in words is "two hundred twenty-nine million, one hundred twenty-seven thousand, three hundred eighty-nine".