212275238 has 8 divisors (see below), whose sum is σ = 363900432. Its totient is φ = 90975096.

The previous prime is 212275237. The next prime is 212275249. The reversal of 212275238 is 832572212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212275237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7581245 + ... + 7581272.

It is an arithmetic number, because the mean of its divisors is an integer number (45487554).

Almost surely, 2^212275238 is an apocalyptic number.

212275238 is a deficient number, since it is larger than the sum of its proper divisors (151625194).

212275238 is a wasteful number, since it uses less digits than its factorization.

212275238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162526.

The product of its digits is 13440, while the sum is 32.

The square root of 212275238 is about 14569.6684245044. The cubic root of 212275238 is about 596.5311298452.

The spelling of 212275238 in words is "two hundred twelve million, two hundred seventy-five thousand, two hundred thirty-eight".