213054959729 has 2 divisors, whose sum is σ = 213054959730. Its totient is φ = 213054959728.

The previous prime is 213054959723. The next prime is 213054959759. The reversal of 213054959729 is 927959450312.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212982250000 + 72709729 = 461500^2 + 8527^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213054959729 is a prime.

It is not a weakly prime, because it can be changed into another prime (213054959723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106527479864 + 106527479865.

It is an arithmetic number, because the mean of its divisors is an integer number (106527479865).

Almost surely, 2^213054959729 is an apocalyptic number.

It is an amenable number.

213054959729 is a deficient number, since it is larger than the sum of its proper divisors (1).

213054959729 is an equidigital number, since it uses as much as digits as its factorization.

213054959729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 56.

The spelling of 213054959729 in words is "two hundred thirteen billion, fifty-four million, nine hundred fifty-nine thousand, seven hundred twenty-nine".