129474959 has 2 divisors, whose sum is σ = 129474960. Its totient is φ = 129474958.

The previous prime is 129474931. The next prime is 129474967. The reversal of 129474959 is 959474921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129474959 - 2²⁰ = 128426383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129474979) 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, 64737479 + 64737480.

It is an arithmetic number, because the mean of its divisors is an integer number (64737480).

Almost surely, 2^129474959 is an apocalyptic number.

129474959 is a deficient number, since it is larger than the sum of its proper divisors (1).

129474959 is an equidigital number, since it uses as much as digits as its factorization.

129474959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 129474959 is about 11378.7063851740. The cubic root of 129474959 is about 505.8967942428.

The spelling of 129474959 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, nine hundred fifty-nine".