212512849 has 2 divisors, whose sum is σ = 212512850. Its totient is φ = 212512848.

The previous prime is 212512829. The next prime is 212512871. The reversal of 212512849 is 948215212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212226624 + 286225 = 14568^2 + 535^2 .

It is a cyclic number.

It is not a de Polignac number, because 212512849 - 2⁹ = 212512337 is a prime.

It is not a weakly prime, because it can be changed into another prime (212512819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106256424 + 106256425.

It is an arithmetic number, because the mean of its divisors is an integer number (106256425).

Almost surely, 2^212512849 is an apocalyptic number.

It is an amenable number.

212512849 is a deficient number, since it is larger than the sum of its proper divisors (1).

212512849 is an equidigital number, since it uses as much as digits as its factorization.

212512849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 34.

The square root of 212512849 is about 14577.8204475155. The cubic root of 212512849 is about 596.7536232236.

The spelling of 212512849 in words is "two hundred twelve million, five hundred twelve thousand, eight hundred forty-nine".