342213197 has 2 divisors, whose sum is σ = 342213198. Its totient is φ = 342213196.

The previous prime is 342213191. The next prime is 342213241. The reversal of 342213197 is 791312243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 342213001 + 196 = 18499^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 342213197 - 2⁶ = 342213133 is a prime.

It is equal to p_18407471 and since 342213197 and 18407471 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 (342213191) 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, 171106598 + 171106599.

It is an arithmetic number, because the mean of its divisors is an integer number (171106599).

Almost surely, 2^342213197 is an apocalyptic number.

It is an amenable number.

342213197 is a deficient number, since it is larger than the sum of its proper divisors (1).

342213197 is an equidigital number, since it uses as much as digits as its factorization.

342213197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 342213197 is about 18499.0052975829. The cubic root of 342213197 is about 699.4643500816.

The spelling of 342213197 in words is "three hundred forty-two million, two hundred thirteen thousand, one hundred ninety-seven".