212553814 has 8 divisors (see below), whose sum is σ = 347815368. Its totient is φ = 96615360.

The previous prime is 212553811. The next prime is 212553823. The reversal of 212553814 is 418355212.

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 (212553811) 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 3 ways as a sum of consecutive naturals, for example, 4830747 + ... + 4830790.

It is an arithmetic number, because the mean of its divisors is an integer number (43476921).

Almost surely, 2^212553814 is an apocalyptic number.

212553814 is a deficient number, since it is larger than the sum of its proper divisors (135261554).

212553814 is a wasteful number, since it uses less digits than its factorization.

212553814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9661550.

The product of its digits is 9600, while the sum is 31.

The square root of 212553814 is about 14579.2254252412. The cubic root of 212553814 is about 596.7919651273.

The spelling of 212553814 in words is "two hundred twelve million, five hundred fifty-three thousand, eight hundred fourteen".