212535797 has 2 divisors, whose sum is σ = 212535798. Its totient is φ = 212535796.

The previous prime is 212535779. The next prime is 212535803. The reversal of 212535797 is 797535212.

Together with previous prime (212535779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135815716 + 76720081 = 11654^2 + 8759^2 .

It is a cyclic number.

It is not a de Polignac number, because 212535797 - 2¹⁶ = 212470261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212535727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106267898 + 106267899.

It is an arithmetic number, because the mean of its divisors is an integer number (106267899).

Almost surely, 2^212535797 is an apocalyptic number.

It is an amenable number.

212535797 is a deficient number, since it is larger than the sum of its proper divisors (1).

212535797 is an equidigital number, since it uses as much as digits as its factorization.

212535797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 41.

The square root of 212535797 is about 14578.6075123792. The cubic root of 212535797 is about 596.7751024100.

The spelling of 212535797 in words is "two hundred twelve million, five hundred thirty-five thousand, seven hundred ninety-seven".