352220173 has 2 divisors, whose sum is σ = 352220174. Its totient is φ = 352220172.

The previous prime is 352220129. The next prime is 352220177. The reversal of 352220173 is 371022253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202720644 + 149499529 = 14238^2 + 12227^2 .

It is a cyclic number.

It is not a de Polignac number, because 352220173 - 2²⁵ = 318665741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (352220177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176110086 + 176110087.

It is an arithmetic number, because the mean of its divisors is an integer number (176110087).

Almost surely, 2^352220173 is an apocalyptic number.

It is an amenable number.

352220173 is a deficient number, since it is larger than the sum of its proper divisors (1).

352220173 is an equidigital number, since it uses as much as digits as its factorization.

352220173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 352220173 is about 18767.5297522077. The cubic root of 352220173 is about 706.2168499020.

The spelling of 352220173 in words is "three hundred fifty-two million, two hundred twenty thousand, one hundred seventy-three".