213127975 has 6 divisors (see below), whose sum is σ = 264278720. Its totient is φ = 170502360.

The previous prime is 213127973. The next prime is 213127979. The reversal of 213127975 is 579721312.

It is not a de Polignac number, because 213127975 - 2¹ = 213127973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213127973) 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 5 ways as a sum of consecutive naturals, for example, 4262535 + ... + 4262584.

Almost surely, 2^213127975 is an apocalyptic number.

213127975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

213127975 is a deficient number, since it is larger than the sum of its proper divisors (51150745).

213127975 is an equidigital number, since it uses as much as digits as its factorization.

213127975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8525129 (or 8525124 counting only the distinct ones).

The product of its digits is 26460, while the sum is 37.

The square root of 213127975 is about 14598.9032122280. The cubic root of 213127975 is about 597.3288434442.

The spelling of 213127975 in words is "two hundred thirteen million, one hundred twenty-seven thousand, nine hundred seventy-five".