212541245 has 16 divisors (see below), whose sum is σ = 291957888. Its totient is φ = 145506240.

The previous prime is 212541181. The next prime is 212541247. The reversal of 212541245 is 542145212.

It is not a de Polignac number, because 212541245 - 2⁶ = 212541181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212541247) 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 15 ways as a sum of consecutive naturals, for example, 18542 + ... + 27728.

It is an arithmetic number, because the mean of its divisors is an integer number (18247368).

Almost surely, 2^212541245 is an apocalyptic number.

It is an amenable number.

212541245 is a deficient number, since it is larger than the sum of its proper divisors (79416643).

212541245 is an equidigital number, since it uses as much as digits as its factorization.

212541245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9860.

The product of its digits is 3200, while the sum is 26.

The square root of 212541245 is about 14578.7943603029. The cubic root of 212541245 is about 596.7802014773.

Adding to 212541245 its reverse (542145212), we get a palindrome (754686457).

The spelling of 212541245 in words is "two hundred twelve million, five hundred forty-one thousand, two hundred forty-five".