212775057 has 24 divisors (see below), whose sum is σ = 336535680. Its totient is φ = 128472480.

The previous prime is 212775023. The next prime is 212775067. The reversal of 212775057 is 750577212.

It is not a de Polignac number, because 212775057 - 2¹⁰ = 212774033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212775067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23544 + ... + 31302.

It is an arithmetic number, because the mean of its divisors is an integer number (14022320).

Almost surely, 2^212775057 is an apocalyptic number.

It is an amenable number.

212775057 is a deficient number, since it is larger than the sum of its proper divisors (123760623).

212775057 is a wasteful number, since it uses less digits than its factorization.

212775057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8053 (or 8050 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 212775057 is about 14586.8110634230. The cubic root of 212775057 is about 596.9989562535.

The spelling of 212775057 in words is "two hundred twelve million, seven hundred seventy-five thousand, fifty-seven".