212657914 has 16 divisors (see below), whose sum is σ = 365457600. Its totient is φ = 90913824.

The previous prime is 212657843. The next prime is 212657959. The reversal of 212657914 is 419756212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12844 + ... + 24295.

It is an arithmetic number, because the mean of its divisors is an integer number (22841100).

Almost surely, 2^212657914 is an apocalyptic number.

212657914 is a deficient number, since it is larger than the sum of its proper divisors (152799686).

212657914 is a wasteful number, since it uses less digits than its factorization.

212657914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37557.

The product of its digits is 30240, while the sum is 37.

The square root of 212657914 is about 14582.7951367356. The cubic root of 212657914 is about 596.8893771708.

The spelling of 212657914 in words is "two hundred twelve million, six hundred fifty-seven thousand, nine hundred fourteen".