212404053 has 4 divisors (see below), whose sum is σ = 283205408. Its totient is φ = 141602700.

The previous prime is 212404007. The next prime is 212404079. The reversal of 212404053 is 350404212.

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 212404053 - 2¹⁰ = 212403029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212404453) 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, 35400673 + ... + 35400678.

It is an arithmetic number, because the mean of its divisors is an integer number (70801352).

Almost surely, 2^212404053 is an apocalyptic number.

It is an amenable number.

212404053 is a deficient number, since it is larger than the sum of its proper divisors (70801355).

212404053 is an equidigital number, since it uses as much as digits as its factorization.

212404053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70801354.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 212404053 is about 14574.0884106005. The cubic root of 212404053 is about 596.6517697906.

Adding to 212404053 its reverse (350404212), we get a palindrome (562808265).

The spelling of 212404053 in words is "two hundred twelve million, four hundred four thousand, fifty-three".