229320493 has 2 divisors, whose sum is σ = 229320494. Its totient is φ = 229320492.

The previous prime is 229320491. The next prime is 229320523. The reversal of 229320493 is 394023922.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136352329 + 92968164 = 11677^2 + 9642^2 .

It is a cyclic number.

It is not a de Polignac number, because 229320493 - 2¹ = 229320491 is a prime.

Together with 229320491, 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 (229320491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114660246 + 114660247.

It is an arithmetic number, because the mean of its divisors is an integer number (114660247).

Almost surely, 2^229320493 is an apocalyptic number.

It is an amenable number.

229320493 is a deficient number, since it is larger than the sum of its proper divisors (1).

229320493 is an equidigital number, since it uses as much as digits as its factorization.

229320493 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 34.

The square root of 229320493 is about 15143.3316347493. The cubic root of 229320493 is about 612.0885971454.

The spelling of 229320493 in words is "two hundred twenty-nine million, three hundred twenty thousand, four hundred ninety-three".