1305434340125 has 16 divisors (see below), whose sum is σ = 1629327780912. Its totient is φ = 1044254059200.

The previous prime is 1305434340113. The next prime is 1305434340139. The reversal of 1305434340125 is 5210434345031.

It can be written as a sum of positive squares in 8 ways, for example, as 53517270244 + 1251917069881 = 231338^2 + 1118891^2 .

It is not a de Polignac number, because 1305434340125 - 2¹⁶ = 1305434274589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953219 + ... + 1876031.

It is an arithmetic number, because the mean of its divisors is an integer number (101832986307).

Almost surely, 2^{1305434340125} is an apocalyptic number.

It is an amenable number.

1305434340125 is a deficient number, since it is larger than the sum of its proper divisors (323893440787).

1305434340125 is an equidigital number, since it uses as much as digits as its factorization.

1305434340125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934145 (or 934135 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 1305434340125 its reverse (5210434345031), we get a palindrome (6515868685156).

The spelling of 1305434340125 in words is "one trillion, three hundred five billion, four hundred thirty-four million, three hundred forty thousand, one hundred twenty-five".