212757473 has 2 divisors, whose sum is σ = 212757474. Its totient is φ = 212757472.

The previous prime is 212757463. The next prime is 212757527. The reversal of 212757473 is 374757212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 183683809 + 29073664 = 13553^2 + 5392^2 .

It is a cyclic number.

It is not a de Polignac number, because 212757473 - 2¹⁰ = 212756449 is a prime.

It is not a weakly prime, because it can be changed into another prime (212757443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106378736 + 106378737.

It is an arithmetic number, because the mean of its divisors is an integer number (106378737).

Almost surely, 2^212757473 is an apocalyptic number.

It is an amenable number.

212757473 is a deficient number, since it is larger than the sum of its proper divisors (1).

212757473 is an equidigital number, since it uses as much as digits as its factorization.

212757473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82320, while the sum is 38.

The square root of 212757473 is about 14586.2083147061. The cubic root of 212757473 is about 596.9825102173.

The spelling of 212757473 in words is "two hundred twelve million, seven hundred fifty-seven thousand, four hundred seventy-three".