173234213 has 2 divisors, whose sum is σ = 173234214. Its totient is φ = 173234212.

The previous prime is 173234167. The next prime is 173234239. The reversal of 173234213 is 312432371.

It is an a-pointer prime, because the next prime (173234239) can be obtained adding 173234213 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170485249 + 2748964 = 13057^2 + 1658^2 .

It is a cyclic number.

It is not a de Polignac number, because 173234213 - 2¹² = 173230117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173234273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86617106 + 86617107.

It is an arithmetic number, because the mean of its divisors is an integer number (86617107).

Almost surely, 2^173234213 is an apocalyptic number.

It is an amenable number.

173234213 is a deficient number, since it is larger than the sum of its proper divisors (1).

173234213 is an equidigital number, since it uses as much as digits as its factorization.

173234213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 173234213 is about 13161.8468688858. The cubic root of 173234213 is about 557.4568064292.

Adding to 173234213 its reverse (312432371), we get a palindrome (485666584).

The spelling of 173234213 in words is "one hundred seventy-three million, two hundred thirty-four thousand, two hundred thirteen".