129301019 has 2 divisors, whose sum is σ = 129301020. Its totient is φ = 129301018.

The previous prime is 129301001. The next prime is 129301021. The reversal of 129301019 is 910103921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129301019 is a prime.

It is a super-2 number, since 2×129301019² = 33437507028876722, which contains 22 as substring.

Together with 129301021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129301219) 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, 64650509 + 64650510.

It is an arithmetic number, because the mean of its divisors is an integer number (64650510).

Almost surely, 2^129301019 is an apocalyptic number.

129301019 is a deficient number, since it is larger than the sum of its proper divisors (1).

129301019 is an equidigital number, since it uses as much as digits as its factorization.

129301019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 129301019 is about 11371.0605925745. The cubic root of 129301019 is about 505.6701477835.

The spelling of 129301019 in words is "one hundred twenty-nine million, three hundred one thousand, nineteen".