129719963 has 2 divisors, whose sum is σ = 129719964. Its totient is φ = 129719962.

The previous prime is 129719927. The next prime is 129719971. The reversal of 129719963 is 369917921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129719963 - 2⁶ = 129719899 is a prime.

It is not a weakly prime, because it can be changed into another prime (129719263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64859981 + 64859982.

It is an arithmetic number, because the mean of its divisors is an integer number (64859982).

Almost surely, 2^129719963 is an apocalyptic number.

129719963 is a deficient number, since it is larger than the sum of its proper divisors (1).

129719963 is an equidigital number, since it uses as much as digits as its factorization.

129719963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 47.

The square root of 129719963 is about 11389.4671956154. The cubic root of 129719963 is about 506.2156941037.

The spelling of 129719963 in words is "one hundred twenty-nine million, seven hundred nineteen thousand, nine hundred sixty-three".