225361229 has 2 divisors, whose sum is σ = 225361230. Its totient is φ = 225361228.

The previous prime is 225361207. The next prime is 225361259. The reversal of 225361229 is 922163522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214622500 + 10738729 = 14650^2 + 3277^2 .

It is a cyclic number.

It is not a de Polignac number, because 225361229 - 2¹² = 225357133 is a prime.

It is a super-4 number, since 4×225361229⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225361195 and 225361204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225361259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112680614 + 112680615.

It is an arithmetic number, because the mean of its divisors is an integer number (112680615).

Almost surely, 2^225361229 is an apocalyptic number.

It is an amenable number.

225361229 is a deficient number, since it is larger than the sum of its proper divisors (1).

225361229 is an equidigital number, since it uses as much as digits as its factorization.

225361229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 225361229 is about 15012.0361377130. The cubic root of 225361229 is about 608.5455170422.

The spelling of 225361229 in words is "two hundred twenty-five million, three hundred sixty-one thousand, two hundred twenty-nine".