229575257 has 2 divisors, whose sum is σ = 229575258. Its totient is φ = 229575256.

The previous prime is 229575253. The next prime is 229575289. The reversal of 229575257 is 752575922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192071881 + 37503376 = 13859^2 + 6124^2 .

It is a cyclic number.

It is not a de Polignac number, because 229575257 - 2² = 229575253 is a prime.

It is not a weakly prime, because it can be changed into another prime (229575253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114787628 + 114787629.

It is an arithmetic number, because the mean of its divisors is an integer number (114787629).

Almost surely, 2^229575257 is an apocalyptic number.

It is an amenable number.

229575257 is a deficient number, since it is larger than the sum of its proper divisors (1).

229575257 is an equidigital number, since it uses as much as digits as its factorization.

229575257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 441000, while the sum is 44.

The square root of 229575257 is about 15151.7410550735. The cubic root of 229575257 is about 612.3151802219.

The spelling of 229575257 in words is "two hundred twenty-nine million, five hundred seventy-five thousand, two hundred fifty-seven".