229543393 has 2 divisors, whose sum is σ = 229543394. Its totient is φ = 229543392.

The previous prime is 229543387. The next prime is 229543397. The reversal of 229543393 is 393345922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228402769 + 1140624 = 15113^2 + 1068^2 .

It is a cyclic number.

It is not a de Polignac number, because 229543393 - 2⁵ = 229543361 is a prime.

It is not a weakly prime, because it can be changed into another prime (229543397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114771696 + 114771697.

It is an arithmetic number, because the mean of its divisors is an integer number (114771697).

Almost surely, 2^229543393 is an apocalyptic number.

It is an amenable number.

229543393 is a deficient number, since it is larger than the sum of its proper divisors (1).

229543393 is an equidigital number, since it uses as much as digits as its factorization.

229543393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 40.

The square root of 229543393 is about 15150.6895222627. The cubic root of 229543393 is about 612.2868500585.

The spelling of 229543393 in words is "two hundred twenty-nine million, five hundred forty-three thousand, three hundred ninety-three".