20593129 has 2 divisors, whose sum is σ = 20593130. Its totient is φ = 20593128.

The previous prime is 20593123. The next prime is 20593151. The reversal of 20593129 is 92139502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20070400 + 522729 = 4480^2 + 723^2 .

It is a cyclic number.

It is not a de Polignac number, because 20593129 - 2³ = 20593121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20593129.

It is not a weakly prime, because it can be changed into another prime (20593121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10296564 + 10296565.

It is an arithmetic number, because the mean of its divisors is an integer number (10296565).

Almost surely, 2^20593129 is an apocalyptic number.

It is an amenable number.

20593129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20593129 is an equidigital number, since it uses as much as digits as its factorization.

20593129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 20593129 is about 4537.9652929479. The cubic root of 20593129 is about 274.0989972076.

The spelling of 20593129 in words is "twenty million, five hundred ninety-three thousand, one hundred twenty-nine".