212660041 has 6 divisors (see below), whose sum is σ = 233750426. Its totient is φ = 193327200.

The previous prime is 212660017. The next prime is 212660051. The reversal of 212660041 is 140066212.

It can be written as a sum of positive squares in only one way, i.e., 163098441 + 49561600 = 12771^2 + 7040^2 .

It is not a de Polignac number, because 212660041 - 2¹³ = 212651849 is a prime.

It is a super-3 number, since 3×212660041³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212659994 and 212660021.

It is not an unprimeable number, because it can be changed into a prime (212660051) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 878640 + ... + 878881.

Almost surely, 2^212660041 is an apocalyptic number.

It is an amenable number.

212660041 is a deficient number, since it is larger than the sum of its proper divisors (21090385).

212660041 is a wasteful number, since it uses less digits than its factorization.

212660041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1757543 (or 1757532 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 212660041 is about 14582.8680649590. The cubic root of 212660041 is about 596.8913671891.

The spelling of 212660041 in words is "two hundred twelve million, six hundred sixty thousand, forty-one".