129973004591 has 2 divisors, whose sum is σ = 129973004592. Its totient is φ = 129973004590.

The previous prime is 129973004563. The next prime is 129973004611. The reversal of 129973004591 is 195400379921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129973004591 - 2¹⁴ = 129972988207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129973004561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64986502295 + 64986502296.

It is an arithmetic number, because the mean of its divisors is an integer number (64986502296).

Almost surely, 2^129973004591 is an apocalyptic number.

129973004591 is a deficient number, since it is larger than the sum of its proper divisors (1).

129973004591 is an equidigital number, since it uses as much as digits as its factorization.

129973004591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 129973004591 in words is "one hundred twenty-nine billion, nine hundred seventy-three million, four thousand, five hundred ninety-one".