235228229 has 2 divisors, whose sum is σ = 235228230. Its totient is φ = 235228228.

The previous prime is 235228211. The next prime is 235228241. The reversal of 235228229 is 922822532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169650625 + 65577604 = 13025^2 + 8098^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235228229 is a prime.

It is equal to p_12913865 and since 235228229 and 12913865 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235228529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117614114 + 117614115.

It is an arithmetic number, because the mean of its divisors is an integer number (117614115).

Almost surely, 2^235228229 is an apocalyptic number.

It is an amenable number.

235228229 is a deficient number, since it is larger than the sum of its proper divisors (1).

235228229 is an equidigital number, since it uses as much as digits as its factorization.

235228229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 35.

The square root of 235228229 is about 15337.1519194406. The cubic root of 235228229 is about 617.3002880417.

The spelling of 235228229 in words is "two hundred thirty-five million, two hundred twenty-eight thousand, two hundred twenty-nine".