229722739 has 2 divisors, whose sum is σ = 229722740. Its totient is φ = 229722738.

The previous prime is 229722733. The next prime is 229722743. The reversal of 229722739 is 937227922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229722739 - 2⁷ = 229722611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229722695 and 229722704.

It is not a weakly prime, because it can be changed into another prime (229722733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114861369 + 114861370.

It is an arithmetic number, because the mean of its divisors is an integer number (114861370).

Almost surely, 2^229722739 is an apocalyptic number.

229722739 is a deficient number, since it is larger than the sum of its proper divisors (1).

229722739 is an equidigital number, since it uses as much as digits as its factorization.

229722739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 229722739 is about 15156.6071071332. The cubic root of 229722739 is about 612.4462717830.

The spelling of 229722739 in words is "two hundred twenty-nine million, seven hundred twenty-two thousand, seven hundred thirty-nine".