229247761 has 2 divisors, whose sum is σ = 229247762. Its totient is φ = 229247760.

The previous prime is 229247659. The next prime is 229247833. The reversal of 229247761 is 167742922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154753600 + 74494161 = 12440^2 + 8631^2 .

It is a cyclic number.

It is not a de Polignac number, because 229247761 - 2⁷ = 229247633 is a prime.

It is not a weakly prime, because it can be changed into another prime (229247461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114623880 + 114623881.

It is an arithmetic number, because the mean of its divisors is an integer number (114623881).

Almost surely, 2^229247761 is an apocalyptic number.

It is an amenable number.

229247761 is a deficient number, since it is larger than the sum of its proper divisors (1).

229247761 is an equidigital number, since it uses as much as digits as its factorization.

229247761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 229247761 is about 15140.9299912522. The cubic root of 229247761 is about 612.0238796626.

The spelling of 229247761 in words is "two hundred twenty-nine million, two hundred forty-seven thousand, seven hundred sixty-one".