1306136646629 has 2 divisors, whose sum is σ = 1306136646630. Its totient is φ = 1306136646628.

The previous prime is 1306136646571. The next prime is 1306136646671. The reversal of 1306136646629 is 9266466316031.

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., 1146188642404 + 159948004225 = 1070602^2 + 399935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1306136646629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306136646229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653068323314 + 653068323315.

It is an arithmetic number, because the mean of its divisors is an integer number (653068323315).

Almost surely, 2^{1306136646629} is an apocalyptic number.

It is an amenable number.

1306136646629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306136646629 is an equidigital number, since it uses as much as digits as its factorization.

1306136646629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 53.

The spelling of 1306136646629 in words is "one trillion, three hundred six billion, one hundred thirty-six million, six hundred forty-six thousand, six hundred twenty-nine".