229742347 has 2 divisors, whose sum is σ = 229742348. Its totient is φ = 229742346.

The previous prime is 229742203. The next prime is 229742353. The reversal of 229742347 is 743247922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229742347 - 2²⁷ = 95524619 is a prime.

It is not a weakly prime, because it can be changed into another prime (229740347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114871173 + 114871174.

It is an arithmetic number, because the mean of its divisors is an integer number (114871174).

Almost surely, 2^229742347 is an apocalyptic number.

229742347 is a deficient number, since it is larger than the sum of its proper divisors (1).

229742347 is an equidigital number, since it uses as much as digits as its factorization.

229742347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 40.

The square root of 229742347 is about 15157.2539399457. The cubic root of 229742347 is about 612.4636964183.

It can be divided in two parts, 2297 and 42347, that added together give a palindrome (44644).

The spelling of 229742347 in words is "two hundred twenty-nine million, seven hundred forty-two thousand, three hundred forty-seven".