20130469 has 2 divisors, whose sum is σ = 20130470. Its totient is φ = 20130468.

The previous prime is 20130457. The next prime is 20130491. The reversal of 20130469 is 96403102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 5461569 = 3830^2 + 2337^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130469 - 2⁹ = 20129957 is a prime.

It is a super-2 number, since 2×20130469² = 810471564319922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065234 + 10065235.

It is an arithmetic number, because the mean of its divisors is an integer number (10065235).

Almost surely, 2^20130469 is an apocalyptic number.

It is an amenable number.

20130469 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130469 is an equidigital number, since it uses as much as digits as its factorization.

20130469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 20130469 is about 4486.6991207345. The cubic root of 20130469 is about 272.0307283984.

The spelling of 20130469 in words is "twenty million, one hundred thirty thousand, four hundred sixty-nine".