212596261 has 2 divisors, whose sum is σ = 212596262. Its totient is φ = 212596260.

The previous prime is 212596231. The next prime is 212596327. The reversal of 212596261 is 162695212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 205033761 + 7562500 = 14319^2 + 2750^2 .

It is a cyclic number.

It is not a de Polignac number, because 212596261 - 2⁷ = 212596133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212596211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106298130 + 106298131.

It is an arithmetic number, because the mean of its divisors is an integer number (106298131).

Almost surely, 2^212596261 is an apocalyptic number.

It is an amenable number.

212596261 is a deficient number, since it is larger than the sum of its proper divisors (1).

212596261 is an equidigital number, since it uses as much as digits as its factorization.

212596261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 212596261 is about 14580.6810883443. The cubic root of 212596261 is about 596.8316889381.

The spelling of 212596261 in words is "two hundred twelve million, five hundred ninety-six thousand, two hundred sixty-one".