212479853 has 2 divisors, whose sum is σ = 212479854. Its totient is φ = 212479852.

The previous prime is 212479849. The next prime is 212479867. The reversal of 212479853 is 358974212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172055689 + 40424164 = 13117^2 + 6358^2 .

It is a cyclic number.

It is not a de Polignac number, because 212479853 - 2² = 212479849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212479853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212479873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106239926 + 106239927.

It is an arithmetic number, because the mean of its divisors is an integer number (106239927).

Almost surely, 2^212479853 is an apocalyptic number.

It is an amenable number.

212479853 is a deficient number, since it is larger than the sum of its proper divisors (1).

212479853 is an equidigital number, since it uses as much as digits as its factorization.

212479853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 212479853 is about 14576.6886843343. The cubic root of 212479853 is about 596.7227364611.

The spelling of 212479853 in words is "two hundred twelve million, four hundred seventy-nine thousand, eight hundred fifty-three".