212496961 has 2 divisors, whose sum is σ = 212496962. Its totient is φ = 212496960.

The previous prime is 212496959. The next prime is 212496989. The reversal of 212496961 is 169694212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177023025 + 35473936 = 13305^2 + 5956^2 .

It is a cyclic number.

It is not a de Polignac number, because 212496961 - 2¹ = 212496959 is a prime.

Together with 212496959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212496461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106248480 + 106248481.

It is an arithmetic number, because the mean of its divisors is an integer number (106248481).

Almost surely, 2^212496961 is an apocalyptic number.

It is an amenable number.

212496961 is a deficient number, since it is larger than the sum of its proper divisors (1).

212496961 is an equidigital number, since it uses as much as digits as its factorization.

212496961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 40.

The square root of 212496961 is about 14577.2754999005. The cubic root of 212496961 is about 596.7387512478.

The spelling of 212496961 in words is "two hundred twelve million, four hundred ninety-six thousand, nine hundred sixty-one".