212260469 has 2 divisors, whose sum is σ = 212260470. Its totient is φ = 212260468.

The previous prime is 212260397. The next prime is 212260481. The reversal of 212260469 is 964062212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205578244 + 6682225 = 14338^2 + 2585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212260469 is a prime.

It is a super-2 number, since 2×212260469² = 90109013400199922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212260969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106130234 + 106130235.

It is an arithmetic number, because the mean of its divisors is an integer number (106130235).

Almost surely, 2^212260469 is an apocalyptic number.

It is an amenable number.

212260469 is a deficient number, since it is larger than the sum of its proper divisors (1).

212260469 is an equidigital number, since it uses as much as digits as its factorization.

212260469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 212260469 is about 14569.1615750530. The cubic root of 212260469 is about 596.5172950198.

The spelling of 212260469 in words is "two hundred twelve million, two hundred sixty thousand, four hundred sixty-nine".