2004130657 has 2 divisors, whose sum is σ = 2004130658. Its totient is φ = 2004130656.

The previous prime is 2004130613. The next prime is 2004130669. The reversal of 2004130657 is 7560314002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002652001 + 1478656 = 44751^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2004130657 - 2¹⁹ = 2003606369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2004130607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002065328 + 1002065329.

It is an arithmetic number, because the mean of its divisors is an integer number (1002065329).

Almost surely, 2^2004130657 is an apocalyptic number.

It is an amenable number.

2004130657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004130657 is an equidigital number, since it uses as much as digits as its factorization.

2004130657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2004130657 is about 44767.5178784797. The cubic root of 2004130657 is about 1260.7878370524.

Adding to 2004130657 its reverse (7560314002), we get a palindrome (9564444659).

The spelling of 2004130657 in words is "two billion, four million, one hundred thirty thousand, six hundred fifty-seven".