212026253 has 4 divisors (see below), whose sum is σ = 212055900. Its totient is φ = 211996608.

The previous prime is 212026247. The next prime is 212026271. The reversal of 212026253 is 352620212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 61669609 + 150356644 = 7853^2 + 12262^2 .

It is a cyclic number.

It is not a de Polignac number, because 212026253 - 2¹² = 212022157 is a prime.

It is a super-2 number, since 2×212026253² = 89910263922440018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212026223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3251 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (53013975).

Almost surely, 2^212026253 is an apocalyptic number.

It is an amenable number.

212026253 is a deficient number, since it is larger than the sum of its proper divisors (29647).

212026253 is a wasteful number, since it uses less digits than its factorization.

212026253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29646.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 212026253 is about 14561.1212823738. The cubic root of 212026253 is about 596.2978079034.

Adding to 212026253 its reverse (352620212), we get a palindrome (564646465).

The spelling of 212026253 in words is "two hundred twelve million, twenty-six thousand, two hundred fifty-three".