212437073 has 2 divisors, whose sum is σ = 212437074. Its totient is φ = 212437072.

The previous prime is 212437009. The next prime is 212437097. The reversal of 212437073 is 370734212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210163009 + 2274064 = 14497^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 212437073 - 2⁶ = 212437009 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (212437003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106218536 + 106218537.

It is an arithmetic number, because the mean of its divisors is an integer number (106218537).

Almost surely, 2^212437073 is an apocalyptic number.

It is an amenable number.

212437073 is a deficient number, since it is larger than the sum of its proper divisors (1).

212437073 is an equidigital number, since it uses as much as digits as its factorization.

212437073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 212437073 is about 14575.2211990076. The cubic root of 212437073 is about 596.6826863705.

The spelling of 212437073 in words is "two hundred twelve million, four hundred thirty-seven thousand, seventy-three".