212766013 has 2 divisors, whose sum is σ = 212766014. Its totient is φ = 212766012.

The previous prime is 212765983. The next prime is 212766041. The reversal of 212766013 is 310667212.

It is an a-pointer prime, because the next prime (212766041) can be obtained adding 212766013 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162894169 + 49871844 = 12763^2 + 7062^2 .

It is a cyclic number.

It is not a de Polignac number, because 212766013 - 2¹⁷ = 212634941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212766413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106383006 + 106383007.

It is an arithmetic number, because the mean of its divisors is an integer number (106383007).

Almost surely, 2^212766013 is an apocalyptic number.

It is an amenable number.

212766013 is a deficient number, since it is larger than the sum of its proper divisors (1).

212766013 is an equidigital number, since it uses as much as digits as its factorization.

212766013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 212766013 is about 14586.5010540568. The cubic root of 212766013 is about 596.9904976570.

The spelling of 212766013 in words is "two hundred twelve million, seven hundred sixty-six thousand, thirteen".