212765941 has 2 divisors, whose sum is σ = 212765942. Its totient is φ = 212765940.

The previous prime is 212765921. The next prime is 212765951. The reversal of 212765941 is 149567212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194017041 + 18748900 = 13929^2 + 4330^2 .

It is a cyclic number.

It is not a de Polignac number, because 212765941 - 2¹⁷ = 212634869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212765941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212765921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106382970 + 106382971.

It is an arithmetic number, because the mean of its divisors is an integer number (106382971).

Almost surely, 2^212765941 is an apocalyptic number.

It is an amenable number.

212765941 is a deficient number, since it is larger than the sum of its proper divisors (1).

212765941 is an equidigital number, since it uses as much as digits as its factorization.

212765941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 212765941 is about 14586.4985860213. The cubic root of 212765941 is about 596.9904303165.

The spelling of 212765941 in words is "two hundred twelve million, seven hundred sixty-five thousand, nine hundred forty-one".