205351229 has 2 divisors, whose sum is σ = 205351230. Its totient is φ = 205351228.

The previous prime is 205351219. The next prime is 205351249. The reversal of 205351229 is 922153502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108722329 + 96628900 = 10427^2 + 9830^2 .

It is a cyclic number.

It is not a de Polignac number, because 205351229 - 2¹² = 205347133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205351219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102675614 + 102675615.

It is an arithmetic number, because the mean of its divisors is an integer number (102675615).

Almost surely, 2^205351229 is an apocalyptic number.

It is an amenable number.

205351229 is a deficient number, since it is larger than the sum of its proper divisors (1).

205351229 is an equidigital number, since it uses as much as digits as its factorization.

205351229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 205351229 is about 14330.0812628540. The cubic root of 205351229 is about 589.9734058682.

The spelling of 205351229 in words is "two hundred five million, three hundred fifty-one thousand, two hundred twenty-nine".