212432197 has 2 divisors, whose sum is σ = 212432198. Its totient is φ = 212432196.

The previous prime is 212432173. The next prime is 212432237. The reversal of 212432197 is 791234212.

212432197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201895681 + 10536516 = 14209^2 + 3246^2 .

It is a cyclic number.

It is not a de Polignac number, because 212432197 - 2⁷ = 212432069 is a prime.

It is a super-3 number, since 3×212432197³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212432107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106216098 + 106216099.

It is an arithmetic number, because the mean of its divisors is an integer number (106216099).

Almost surely, 2^212432197 is an apocalyptic number.

It is an amenable number.

212432197 is a deficient number, since it is larger than the sum of its proper divisors (1).

212432197 is an equidigital number, since it uses as much as digits as its factorization.

212432197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 212432197 is about 14575.0539278591. The cubic root of 212432197 is about 596.6781211801.

The spelling of 212432197 in words is "two hundred twelve million, four hundred thirty-two thousand, one hundred ninety-seven".