212510413 has 4 divisors (see below), whose sum is σ = 214701340. Its totient is φ = 210319488.

The previous prime is 212510407. The next prime is 212510447. The reversal of 212510413 is 314015212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 157201444 + 55308969 = 12538^2 + 7437^2 .

It is a cyclic number.

It is not a de Polignac number, because 212510413 - 2⁵ = 212510381 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 (212510483) 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, 1095318 + ... + 1095511.

It is an arithmetic number, because the mean of its divisors is an integer number (53675335).

Almost surely, 2^212510413 is an apocalyptic number.

It is an amenable number.

212510413 is a deficient number, since it is larger than the sum of its proper divisors (2190927).

212510413 is an equidigital number, since it uses as much as digits as its factorization.

212510413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190926.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 212510413 is about 14577.7368956913. The cubic root of 212510413 is about 596.7513430519.

Adding to 212510413 its reverse (314015212), we get a palindrome (526525625).

The spelling of 212510413 in words is "two hundred twelve million, five hundred ten thousand, four hundred thirteen".