129000941 has 2 divisors, whose sum is σ = 129000942. Its totient is φ = 129000940.

The previous prime is 129000923. The next prime is 129000973. The reversal of 129000941 is 149000921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90820900 + 38180041 = 9530^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 129000941 - 2⁶ = 129000877 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129000941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129000901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64500470 + 64500471.

It is an arithmetic number, because the mean of its divisors is an integer number (64500471).

Almost surely, 2^129000941 is an apocalyptic number.

It is an amenable number.

129000941 is a deficient number, since it is larger than the sum of its proper divisors (1).

129000941 is an equidigital number, since it uses as much as digits as its factorization.

129000941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 129000941 is about 11357.8581167401. The cubic root of 129000941 is about 505.2786633124.

The spelling of 129000941 in words is "one hundred twenty-nine million, nine hundred forty-one", and thus it is an aban number.