212974529 has 2 divisors, whose sum is σ = 212974530. Its totient is φ = 212974528.

The previous prime is 212974523. The next prime is 212974537. The reversal of 212974529 is 925479212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122058304 + 90916225 = 11048^2 + 9535^2 .

It is a cyclic number.

It is not a de Polignac number, because 212974529 - 2⁴ = 212974513 is a prime.

It is not a weakly prime, because it can be changed into another prime (212974523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106487264 + 106487265.

It is an arithmetic number, because the mean of its divisors is an integer number (106487265).

Almost surely, 2^212974529 is an apocalyptic number.

It is an amenable number.

212974529 is a deficient number, since it is larger than the sum of its proper divisors (1).

212974529 is an equidigital number, since it uses as much as digits as its factorization.

212974529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 212974529 is about 14593.6468711560. The cubic root of 212974529 is about 597.1854558426.

The spelling of 212974529 in words is "two hundred twelve million, nine hundred seventy-four thousand, five hundred twenty-nine".