212680547 has 4 divisors (see below), whose sum is σ = 223874280. Its totient is φ = 201486816.

The previous prime is 212680513. The next prime is 212680597. The reversal of 212680547 is 745086212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212680547 - 2¹⁸ = 212418403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212680597) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5596838 + ... + 5596875.

It is an arithmetic number, because the mean of its divisors is an integer number (55968570).

Almost surely, 2^212680547 is an apocalyptic number.

212680547 is a deficient number, since it is larger than the sum of its proper divisors (11193733).

212680547 is a wasteful number, since it uses less digits than its factorization.

212680547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193732.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 212680547 is about 14583.5711332993. The cubic root of 212680547 is about 596.9105518950.

The spelling of 212680547 in words is "two hundred twelve million, six hundred eighty thousand, five hundred forty-seven".