213134644559 has 2 divisors, whose sum is σ = 213134644560. Its totient is φ = 213134644558.

The previous prime is 213134644453. The next prime is 213134644601. The reversal of 213134644559 is 955446431312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213134644559 - 2¹² = 213134640463 is a prime.

It is a super-2 number, since 2×213134644559² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213134694559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106567322279 + 106567322280.

It is an arithmetic number, because the mean of its divisors is an integer number (106567322280).

Almost surely, 2^213134644559 is an apocalyptic number.

213134644559 is a deficient number, since it is larger than the sum of its proper divisors (1).

213134644559 is an equidigital number, since it uses as much as digits as its factorization.

213134644559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 47.

The spelling of 213134644559 in words is "two hundred thirteen billion, one hundred thirty-four million, six hundred forty-four thousand, five hundred fifty-nine".