213453029 has 2 divisors, whose sum is σ = 213453030. Its totient is φ = 213453028.

The previous prime is 213453013. The next prime is 213453047. The reversal of 213453029 is 920354312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154132225 + 59320804 = 12415^2 + 7702^2 .

It is a cyclic number.

It is not a de Polignac number, because 213453029 - 2⁴ = 213453013 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213452992 and 213453010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213453329) 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 as a sum of consecutive naturals, namely, 106726514 + 106726515.

It is an arithmetic number, because the mean of its divisors is an integer number (106726515).

Almost surely, 2^213453029 is an apocalyptic number.

It is an amenable number.

213453029 is a deficient number, since it is larger than the sum of its proper divisors (1).

213453029 is an equidigital number, since it uses as much as digits as its factorization.

213453029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 213453029 is about 14610.0317932577. The cubic root of 213453029 is about 597.6323629658.

The spelling of 213453029 in words is "two hundred thirteen million, four hundred fifty-three thousand, twenty-nine".