213112553 has 2 divisors, whose sum is σ = 213112554. Its totient is φ = 213112552.

The previous prime is 213112519. The next prime is 213112577. The reversal of 213112553 is 355211312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183115024 + 29997529 = 13532^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 213112553 - 2¹⁰ = 213111529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213102553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556276 + 106556277.

It is an arithmetic number, because the mean of its divisors is an integer number (106556277).

Almost surely, 2^213112553 is an apocalyptic number.

It is an amenable number.

213112553 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112553 is an equidigital number, since it uses as much as digits as its factorization.

213112553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 900, while the sum is 23.

The square root of 213112553 is about 14598.3750123087. The cubic root of 213112553 is about 597.3144354691.

Adding to 213112553 its reverse (355211312), we get a palindrome (568323865).

The spelling of 213112553 in words is "two hundred thirteen million, one hundred twelve thousand, five hundred fifty-three".