229479457 has 2 divisors, whose sum is σ = 229479458. Its totient is φ = 229479456.

The previous prime is 229479451. The next prime is 229479461. The reversal of 229479457 is 754974922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151880976 + 77598481 = 12324^2 + 8809^2 .

It is a cyclic number.

It is not a de Polignac number, because 229479457 - 2³ = 229479449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229479457.

It is not a weakly prime, because it can be changed into another prime (229479451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114739728 + 114739729.

It is an arithmetic number, because the mean of its divisors is an integer number (114739729).

Almost surely, 2^229479457 is an apocalyptic number.

It is an amenable number.

229479457 is a deficient number, since it is larger than the sum of its proper divisors (1).

229479457 is an equidigital number, since it uses as much as digits as its factorization.

229479457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The square root of 229479457 is about 15148.5793723372. The cubic root of 229479457 is about 612.2299968905.

The spelling of 229479457 in words is "two hundred twenty-nine million, four hundred seventy-nine thousand, four hundred fifty-seven".