212071307 has 8 divisors (see below), whose sum is σ = 242901216. Its totient is φ = 181374912.

The previous prime is 212071303. The next prime is 212071333. The reversal of 212071307 is 703170212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212071307 - 2² = 212071303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212071303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29948 + ... + 36345.

It is an arithmetic number, because the mean of its divisors is an integer number (30362652).

Almost surely, 2^212071307 is an apocalyptic number.

212071307 is a deficient number, since it is larger than the sum of its proper divisors (30829909).

212071307 is an equidigital number, since it uses as much as digits as its factorization.

212071307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66757.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 212071307 is about 14562.6682651223. The cubic root of 212071307 is about 596.3400411935.

The spelling of 212071307 in words is "two hundred twelve million, seventy-one thousand, three hundred seven".