212549273 has 2 divisors, whose sum is σ = 212549274. Its totient is φ = 212549272.

The previous prime is 212549251. The next prime is 212549287. The reversal of 212549273 is 372945212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209902144 + 2647129 = 14488^2 + 1627^2 .

It is a cyclic number.

It is not a de Polignac number, because 212549273 - 2¹⁰ = 212548249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212549573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106274636 + 106274637.

It is an arithmetic number, because the mean of its divisors is an integer number (106274637).

Almost surely, 2^212549273 is an apocalyptic number.

It is an amenable number.

212549273 is a deficient number, since it is larger than the sum of its proper divisors (1).

212549273 is an equidigital number, since it uses as much as digits as its factorization.

212549273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 212549273 is about 14579.0696891125. The cubic root of 212549273 is about 596.7877151422.

The spelling of 212549273 in words is "two hundred twelve million, five hundred forty-nine thousand, two hundred seventy-three".