1461143317 has 2 divisors, whose sum is σ = 1461143318. Its totient is φ = 1461143316.

The previous prime is 1461143269. The next prime is 1461143323. The reversal of 1461143317 is 7133411641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1318125636 + 143017681 = 36306^2 + 11959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1461143317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461143417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730571658 + 730571659.

It is an arithmetic number, because the mean of its divisors is an integer number (730571659).

Almost surely, 2^1461143317 is an apocalyptic number.

It is an amenable number.

1461143317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461143317 is an equidigital number, since it uses as much as digits as its factorization.

1461143317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 1461143317 is about 38224.9044079903. The cubic root of 1461143317 is about 1134.7432429752.

Adding to 1461143317 its reverse (7133411641), we get a palindrome (8594554958).

The spelling of 1461143317 in words is "one billion, four hundred sixty-one million, one hundred forty-three thousand, three hundred seventeen".