212452973 has 2 divisors, whose sum is σ = 212452974. Its totient is φ = 212452972.

The previous prime is 212452963. The next prime is 212452979. The reversal of 212452973 is 379254212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180042724 + 32410249 = 13418^2 + 5693^2 .

It is a cyclic number.

It is not a de Polignac number, because 212452973 - 2⁸ = 212452717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212452979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106226486 + 106226487.

It is an arithmetic number, because the mean of its divisors is an integer number (106226487).

Almost surely, 2^212452973 is an apocalyptic number.

It is an amenable number.

212452973 is a deficient number, since it is larger than the sum of its proper divisors (1).

212452973 is an equidigital number, since it uses as much as digits as its factorization.

212452973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 212452973 is about 14575.7666350693. The cubic root of 212452973 is about 596.6975723755.

The spelling of 212452973 in words is "two hundred twelve million, four hundred fifty-two thousand, nine hundred seventy-three".