212934745 has 8 divisors (see below), whose sum is σ = 255942216. Its totient is φ = 170067456.

The previous prime is 212934731. The next prime is 212934749. The reversal of 212934745 is 547439212.

It can be written as a sum of positive squares in 4 ways, for example, as 8281 + 212926464 = 91^2 + 14592^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 212934745 - 2¹¹ = 212932697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212934749) 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 7 ways as a sum of consecutive naturals, for example, 31672 + ... + 37801.

It is an arithmetic number, because the mean of its divisors is an integer number (31992777).

Almost surely, 2^212934745 is an apocalyptic number.

It is an amenable number.

212934745 is a deficient number, since it is larger than the sum of its proper divisors (43007471).

212934745 is an equidigital number, since it uses as much as digits as its factorization.

212934745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70091.

The product of its digits is 60480, while the sum is 37.

The square root of 212934745 is about 14592.2837486118. The cubic root of 212934745 is about 597.1482684446.

The spelling of 212934745 in words is "two hundred twelve million, nine hundred thirty-four thousand, seven hundred forty-five".