212158313 has 8 divisors (see below), whose sum is σ = 228772320. Its totient is φ = 196089120.

The previous prime is 212158301. The next prime is 212158321. The reversal of 212158313 is 313851212.

212158313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212158313 - 2⁸ = 212158057 is a prime.

It is a super-2 number, since 2×212158313² = 90022299550011938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212158613) 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, 135395 + ... + 136952.

It is an arithmetic number, because the mean of its divisors is an integer number (28596540).

Almost surely, 2^212158313 is an apocalyptic number.

It is an amenable number.

212158313 is a deficient number, since it is larger than the sum of its proper divisors (16614007).

212158313 is a wasteful number, since it uses less digits than its factorization.

212158313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272407.

The product of its digits is 1440, while the sum is 26.

The square root of 212158313 is about 14565.6552547422. The cubic root of 212158313 is about 596.4215830554.

The spelling of 212158313 in words is "two hundred twelve million, one hundred fifty-eight thousand, three hundred thirteen".