212715275 has 6 divisors (see below), whose sum is σ = 263766972. Its totient is φ = 170172200.

The previous prime is 212715229. The next prime is 212715287. The reversal of 212715275 is 572517212.

It is not a de Polignac number, because 212715275 - 2²² = 208520971 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4254281 + ... + 4254330.

It is an arithmetic number, because the mean of its divisors is an integer number (43961162).

Almost surely, 2^212715275 is an apocalyptic number.

212715275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

212715275 is a deficient number, since it is larger than the sum of its proper divisors (51051697).

212715275 is an equidigital number, since it uses as much as digits as its factorization.

212715275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508621 (or 8508616 counting only the distinct ones).

The product of its digits is 9800, while the sum is 32.

The square root of 212715275 is about 14584.7617395691. The cubic root of 212715275 is about 596.9430394007.

The spelling of 212715275 in words is "two hundred twelve million, seven hundred fifteen thousand, two hundred seventy-five".