212157314 has 8 divisors (see below), whose sum is σ = 336955788. Its totient is φ = 99838720.

The previous prime is 212157311. The next prime is 212157317. The reversal of 212157314 is 413751212.

212157314 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212157311) and next prime (212157317).

It can be written as a sum of positive squares in 2 ways, for example, as 202578289 + 9579025 = 14233^2 + 3095^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212157311) 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, 3119927 + ... + 3119994.

Almost surely, 2^212157314 is an apocalyptic number.

212157314 is a deficient number, since it is larger than the sum of its proper divisors (124798474).

212157314 is a wasteful number, since it uses less digits than its factorization.

212157314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239940.

The product of its digits is 1680, while the sum is 26.

The square root of 212157314 is about 14565.6209617029. The cubic root of 212157314 is about 596.4206469209.

The spelling of 212157314 in words is "two hundred twelve million, one hundred fifty-seven thousand, three hundred fourteen".