129943041 has 16 divisors (see below), whose sum is σ = 179232768. Its totient is φ = 83653200.

The previous prime is 129943039. The next prime is 129943061. The reversal of 129943041 is 140349921.

It is not a de Polignac number, because 129943041 - 2¹ = 129943039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129942993 and 129943011.

It is not an unprimeable number, because it can be changed into a prime (129943061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51880 + ... + 54326.

It is an arithmetic number, because the mean of its divisors is an integer number (11202048).

Almost surely, 2^129943041 is an apocalyptic number.

It is an amenable number.

129943041 is a deficient number, since it is larger than the sum of its proper divisors (49289727).

129943041 is a wasteful number, since it uses less digits than its factorization.

129943041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 129943041 is about 11399.2561599431. The cubic root of 129943041 is about 506.5057057860.

The spelling of 129943041 in words is "one hundred twenty-nine million, nine hundred forty-three thousand, forty-one".