212510513 has 2 divisors, whose sum is σ = 212510514. Its totient is φ = 212510512.

The previous prime is 212510509. The next prime is 212510537. The reversal of 212510513 is 315015212.

It is a happy number.

212510513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208715809 + 3794704 = 14447^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 212510513 - 2² = 212510509 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (212510113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106255256 + 106255257.

It is an arithmetic number, because the mean of its divisors is an integer number (106255257).

Almost surely, 2^212510513 is an apocalyptic number.

It is an amenable number.

212510513 is a deficient number, since it is larger than the sum of its proper divisors (1).

212510513 is an equidigital number, since it uses as much as digits as its factorization.

212510513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 212510513 is about 14577.7403255786. The cubic root of 212510513 is about 596.7514366553.

Adding to 212510513 its reverse (315015212), we get a palindrome (527525725).

The spelling of 212510513 in words is "two hundred twelve million, five hundred ten thousand, five hundred thirteen".