97212529 has 2 divisors, whose sum is σ = 97212530. Its totient is φ = 97212528.

The previous prime is 97212509. The next prime is 97212587. The reversal of 97212529 is 92521279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91680625 + 5531904 = 9575^2 + 2352^2 .

It is a cyclic number.

It is not a de Polignac number, because 97212529 - 2¹¹ = 97210481 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (97212509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48606264 + 48606265.

It is an arithmetic number, because the mean of its divisors is an integer number (48606265).

Almost surely, 2^97212529 is an apocalyptic number.

It is an amenable number.

97212529 is a deficient number, since it is larger than the sum of its proper divisors (1).

97212529 is an equidigital number, since it uses as much as digits as its factorization.

97212529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 97212529 is about 9859.6414235001. The cubic root of 97212529 is about 459.8054139184.

The spelling of 97212529 in words is "ninety-seven million, two hundred twelve thousand, five hundred twenty-nine".