129954311 has 2 divisors, whose sum is σ = 129954312. Its totient is φ = 129954310.

The previous prime is 129954287. The next prime is 129954337. The reversal of 129954311 is 113459921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129954311 - 2⁶ = 129954247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129954371) 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, 64977155 + 64977156.

It is an arithmetic number, because the mean of its divisors is an integer number (64977156).

Almost surely, 2^129954311 is an apocalyptic number.

129954311 is a deficient number, since it is larger than the sum of its proper divisors (1).

129954311 is an equidigital number, since it uses as much as digits as its factorization.

129954311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 35.

The square root of 129954311 is about 11399.7504797254. The cubic root of 129954311 is about 506.5203484947.

The spelling of 129954311 in words is "one hundred twenty-nine million, nine hundred fifty-four thousand, three hundred eleven".