213505319 has 2 divisors, whose sum is σ = 213505320. Its totient is φ = 213505318.

The previous prime is 213505289. The next prime is 213505361. The reversal of 213505319 is 913505312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213505319 - 2²⁰ = 212456743 is a prime.

It is a super-2 number, since 2×213505319² = 91169042482583522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213505291 and 213505300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213505219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106752659 + 106752660.

It is an arithmetic number, because the mean of its divisors is an integer number (106752660).

Almost surely, 2^213505319 is an apocalyptic number.

213505319 is a deficient number, since it is larger than the sum of its proper divisors (1).

213505319 is an equidigital number, since it uses as much as digits as its factorization.

213505319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 29.

The square root of 213505319 is about 14611.8212075018. The cubic root of 213505319 is about 597.6811600320.

The spelling of 213505319 in words is "two hundred thirteen million, five hundred five thousand, three hundred nineteen".