1305434340139 has 2 divisors, whose sum is σ = 1305434340140. Its totient is φ = 1305434340138.

The previous prime is 1305434340113. The next prime is 1305434340167. The reversal of 1305434340139 is 9310434345031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1305434340139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1305434340839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652717170069 + 652717170070.

It is an arithmetic number, because the mean of its divisors is an integer number (652717170070).

Almost surely, 2^{1305434340139} is an apocalyptic number.

1305434340139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305434340139 is an equidigital number, since it uses as much as digits as its factorization.

1305434340139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 1305434340139 in words is "one trillion, three hundred five billion, four hundred thirty-four million, three hundred forty thousand, one hundred thirty-nine".