212869071 has 18 divisors (see below), whose sum is σ = 321434568. Its totient is φ = 135739560.

The previous prime is 212869067. The next prime is 212869081. The reversal of 212869071 is 170968212.

It is not a de Polignac number, because 212869071 - 2² = 212869067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212869001) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17595 + ... + 27116.

It is an arithmetic number, because the mean of its divisors is an integer number (17857476).

Almost surely, 2^212869071 is an apocalyptic number.

212869071 is a deficient number, since it is larger than the sum of its proper divisors (108565497).

212869071 is a wasteful number, since it uses less digits than its factorization.

212869071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44763 (or 44737 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 212869071 is about 14590.0332761786. The cubic root of 212869071 is about 597.0868706865.

The spelling of 212869071 in words is "two hundred twelve million, eight hundred sixty-nine thousand, seventy-one".