212617073 has 2 divisors, whose sum is σ = 212617074. Its totient is φ = 212617072.

The previous prime is 212617057. The next prime is 212617091. The reversal of 212617073 is 370716212.

212617073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 180445489 + 32171584 = 13433^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 212617073 - 2⁴ = 212617057 is a prime.

It is not a weakly prime, because it can be changed into another prime (212617043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106308536 + 106308537.

It is an arithmetic number, because the mean of its divisors is an integer number (106308537).

Almost surely, 2^212617073 is an apocalyptic number.

It is an amenable number.

212617073 is a deficient number, since it is larger than the sum of its proper divisors (1).

212617073 is an equidigital number, since it uses as much as digits as its factorization.

212617073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 212617073 is about 14581.3947549609. The cubic root of 212617073 is about 596.8511638115.

The spelling of 212617073 in words is "two hundred twelve million, six hundred seventeen thousand, seventy-three".