212766413 has 2 divisors, whose sum is σ = 212766414. Its totient is φ = 212766412.

The previous prime is 212766409. The next prime is 212766461. The reversal of 212766413 is 314667212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134142724 + 78623689 = 11582^2 + 8867^2 .

It is a cyclic number.

It is not a de Polignac number, because 212766413 - 2² = 212766409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212766413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212766403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106383206 + 106383207.

It is an arithmetic number, because the mean of its divisors is an integer number (106383207).

Almost surely, 2^212766413 is an apocalyptic number.

It is an amenable number.

212766413 is a deficient number, since it is larger than the sum of its proper divisors (1).

212766413 is an equidigital number, since it uses as much as digits as its factorization.

212766413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 212766413 is about 14586.5147653578. The cubic root of 212766413 is about 596.9908717707.

The spelling of 212766413 in words is "two hundred twelve million, seven hundred sixty-six thousand, four hundred thirteen".