1305433141 has 2 divisors, whose sum is σ = 1305433142. Its totient is φ = 1305433140.

The previous prime is 1305433121. The next prime is 1305433147. The reversal of 1305433141 is 1413345031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1020802500 + 284630641 = 31950^2 + 16871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305433141 - 2⁷ = 1305433013 is a prime.

It is a super-2 number, since 2×1305433141² = 3408311371242251762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305433147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652716570 + 652716571.

It is an arithmetic number, because the mean of its divisors is an integer number (652716571).

Almost surely, 2^1305433141 is an apocalyptic number.

It is an amenable number.

1305433141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305433141 is an equidigital number, since it uses as much as digits as its factorization.

1305433141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1305433141 is about 36130.7783060371. The cubic root of 1305433141 is about 1092.9112035268.

Adding to 1305433141 its reverse (1413345031), we get a palindrome (2718778172).

The spelling of 1305433141 in words is "one billion, three hundred five million, four hundred thirty-three thousand, one hundred forty-one".