212772733 has 2 divisors, whose sum is σ = 212772734. Its totient is φ = 212772732.

The previous prime is 212772727. The next prime is 212772737. The reversal of 212772733 is 337277212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196756729 + 16016004 = 14027^2 + 4002^2 .

It is a cyclic number.

It is not a de Polignac number, because 212772733 - 2²¹ = 210675581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212772737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106386366 + 106386367.

It is an arithmetic number, because the mean of its divisors is an integer number (106386367).

Almost surely, 2^212772733 is an apocalyptic number.

It is an amenable number.

212772733 is a deficient number, since it is larger than the sum of its proper divisors (1).

212772733 is an equidigital number, since it uses as much as digits as its factorization.

212772733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24696, while the sum is 34.

The square root of 212772733 is about 14586.7314022025. The cubic root of 212772733 is about 596.9967827051.

The spelling of 212772733 in words is "two hundred twelve million, seven hundred seventy-two thousand, seven hundred thirty-three".