1306731029 has 2 divisors, whose sum is σ = 1306731030. Its totient is φ = 1306731028.

The previous prime is 1306730987. The next prime is 1306731037. The reversal of 1306731029 is 9201376031.

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., 1303932100 + 2798929 = 36110^2 + 1673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306731029 - 2²⁴ = 1289953813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1306730986 and 1306731004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306731089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653365514 + 653365515.

It is an arithmetic number, because the mean of its divisors is an integer number (653365515).

Almost surely, 2^1306731029 is an apocalyptic number.

It is an amenable number.

1306731029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306731029 is an equidigital number, since it uses as much as digits as its factorization.

1306731029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1306731029 is about 36148.7348188011. The cubic root of 1306731029 is about 1093.2732816904.

The spelling of 1306731029 in words is "one billion, three hundred six million, seven hundred thirty-one thousand, twenty-nine".