212873071 has 2 divisors, whose sum is σ = 212873072. Its totient is φ = 212873070.

The previous prime is 212873053. The next prime is 212873081. The reversal of 212873071 is 170378212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212873071 - 2⁵ = 212873039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212873081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106436535 + 106436536.

It is an arithmetic number, because the mean of its divisors is an integer number (106436536).

Almost surely, 2^212873071 is an apocalyptic number.

212873071 is a deficient number, since it is larger than the sum of its proper divisors (1).

212873071 is an equidigital number, since it uses as much as digits as its factorization.

212873071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 212873071 is about 14590.1703554139. The cubic root of 212873071 is about 597.0906105950.

The spelling of 212873071 in words is "two hundred twelve million, eight hundred seventy-three thousand, seventy-one".