212073247 has 2 divisors, whose sum is σ = 212073248. Its totient is φ = 212073246.

The previous prime is 212073241. The next prime is 212073287. The reversal of 212073247 is 742370212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212073247 - 2¹¹ = 212071199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212073241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106036623 + 106036624.

It is an arithmetic number, because the mean of its divisors is an integer number (106036624).

Almost surely, 2^212073247 is an apocalyptic number.

212073247 is a deficient number, since it is larger than the sum of its proper divisors (1).

212073247 is an equidigital number, since it uses as much as digits as its factorization.

212073247 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 28.

The square root of 212073247 is about 14562.7348736424. The cubic root of 212073247 is about 596.3418596010.

The spelling of 212073247 in words is "two hundred twelve million, seventy-three thousand, two hundred forty-seven".