212756049 has 48 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 122490720.

The previous prime is 212756029. The next prime is 212756087. The reversal of 212756049 is 940657212.

212756049 is a `hidden beast` number, since 21 + 27 + 5 + 604 + 9 = 666.

212756049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212756049 - 2¹² = 212751953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212756029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 507562 + ... + 507980.

It is an arithmetic number, because the mean of its divisors is an integer number (7338240).

Almost surely, 2^212756049 is an apocalyptic number.

It is an amenable number.

212756049 is a deficient number, since it is larger than the sum of its proper divisors (139479471).

212756049 is a wasteful number, since it uses less digits than its factorization.

212756049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 212756049 is about 14586.1595013904. The cubic root of 212756049 is about 596.9811783331.

The spelling of 212756049 in words is "two hundred twelve million, seven hundred fifty-six thousand, forty-nine".