20130029 has 2 divisors, whose sum is σ = 20130030. Its totient is φ = 20130028.

The previous prime is 20130001. The next prime is 20130043. The reversal of 20130029 is 92003102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12974404 + 7155625 = 3602^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130029 - 2⁸ = 20129773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20129989 and 20130016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130079) 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, 10065014 + 10065015.

It is an arithmetic number, because the mean of its divisors is an integer number (10065015).

Almost surely, 2^20130029 is an apocalyptic number.

It is an amenable number.

20130029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130029 is an equidigital number, since it uses as much as digits as its factorization.

20130029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 20130029 is about 4486.6500866459. The cubic root of 20130029 is about 272.0287464212.

The spelling of 20130029 in words is "twenty million, one hundred thirty thousand, twenty-nine".