2431004561 has 2 divisors, whose sum is σ = 2431004562. Its totient is φ = 2431004560.

The previous prime is 2431004551. The next prime is 2431004567. The reversal of 2431004561 is 1654001342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2278630225 + 152374336 = 47735^2 + 12344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2431004561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2431004561.

It is not a weakly prime, because it can be changed into another prime (2431004567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215502280 + 1215502281.

It is an arithmetic number, because the mean of its divisors is an integer number (1215502281).

Almost surely, 2^2431004561 is an apocalyptic number.

It is an amenable number.

2431004561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431004561 is an equidigital number, since it uses as much as digits as its factorization.

2431004561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2431004561 is about 49305.2183952165. The cubic root of 2431004561 is about 1344.6066595319.

The spelling of 2431004561 in words is "two billion, four hundred thirty-one million, four thousand, five hundred sixty-one".