212513241 has 4 divisors (see below), whose sum is σ = 283350992. Its totient is φ = 141675492.

The previous prime is 212513219. The next prime is 212513269. The reversal of 212513241 is 142315212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 212513241 - 2⁶ = 212513177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212513201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35418871 + ... + 35418876.

It is an arithmetic number, because the mean of its divisors is an integer number (70837748).

Almost surely, 2^212513241 is an apocalyptic number.

It is an amenable number.

212513241 is a deficient number, since it is larger than the sum of its proper divisors (70837751).

212513241 is an equidigital number, since it uses as much as digits as its factorization.

212513241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70837750.

The product of its digits is 480, while the sum is 21.

The square root of 212513241 is about 14577.8338925919. The cubic root of 212513241 is about 596.7539901462.

Adding to 212513241 its reverse (142315212), we get a palindrome (354828453).

The spelling of 212513241 in words is "two hundred twelve million, five hundred thirteen thousand, two hundred forty-one".