1302091129 has 2 divisors, whose sum is σ = 1302091130. Its totient is φ = 1302091128.

The previous prime is 1302091123. The next prime is 1302091159. The reversal of 1302091129 is 9211902031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1209161529 + 92929600 = 34773^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302091129 - 2⁹ = 1302090617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1302091097 and 1302091106.

It is not a weakly prime, because it can be changed into another prime (1302091123) 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, 651045564 + 651045565.

It is an arithmetic number, because the mean of its divisors is an integer number (651045565).

Almost surely, 2^1302091129 is an apocalyptic number.

It is an amenable number.

1302091129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302091129 is an equidigital number, since it uses as much as digits as its factorization.

1302091129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1302091129 is about 36084.4998441159. The cubic root of 1302091129 is about 1091.9777601615.

The spelling of 1302091129 in words is "one billion, three hundred two million, ninety-one thousand, one hundred twenty-nine".