212173373 has 2 divisors, whose sum is σ = 212173374. Its totient is φ = 212173372.

The previous prime is 212173349. The next prime is 212173387. The reversal of 212173373 is 373371212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110607289 + 101566084 = 10517^2 + 10078^2 .

It is a cyclic number.

It is not a de Polignac number, because 212173373 - 2¹² = 212169277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212173673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106086686 + 106086687.

It is an arithmetic number, because the mean of its divisors is an integer number (106086687).

Almost surely, 2^212173373 is an apocalyptic number.

It is an amenable number.

212173373 is a deficient number, since it is larger than the sum of its proper divisors (1).

212173373 is an equidigital number, since it uses as much as digits as its factorization.

212173373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 29.

The square root of 212173373 is about 14566.1722151017. The cubic root of 212173373 is about 596.4356949959.

The spelling of 212173373 in words is "two hundred twelve million, one hundred seventy-three thousand, three hundred seventy-three".