213351469 has 2 divisors, whose sum is σ = 213351470. Its totient is φ = 213351468.

The previous prime is 213351451. The next prime is 213351487. The reversal of 213351469 is 964153312.

It is a balanced prime because it is at equal distance from previous prime (213351451) and next prime (213351487).

It can be written as a sum of positive squares in only one way, i.e., 207734569 + 5616900 = 14413^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 213351469 - 2⁹ = 213350957 is a prime.

It is a super-2 number, since 2×213351469² = 91037698648915922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213351409) 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, 106675734 + 106675735.

It is an arithmetic number, because the mean of its divisors is an integer number (106675735).

Almost surely, 2^213351469 is an apocalyptic number.

It is an amenable number.

213351469 is a deficient number, since it is larger than the sum of its proper divisors (1).

213351469 is an equidigital number, since it uses as much as digits as its factorization.

213351469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 34.

The square root of 213351469 is about 14606.5556857187. Note that the first 3 decimals coincide. The cubic root of 213351469 is about 597.5375643242.

The spelling of 213351469 in words is "two hundred thirteen million, three hundred fifty-one thousand, four hundred sixty-nine".