129659041 has 8 divisors (see below), whose sum is σ = 134918784. Its totient is φ = 124503600.

The previous prime is 129659039. The next prime is 129659083. The reversal of 129659041 is 140956921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129659041 - 2¹ = 129659039 is a prime.

It is a super-2 number, since 2×129659041² = 33622933826079362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129656041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23535 + ... + 28516.

It is an arithmetic number, because the mean of its divisors is an integer number (16864848).

Almost surely, 2^129659041 is an apocalyptic number.

It is an amenable number.

129659041 is a deficient number, since it is larger than the sum of its proper divisors (5259743).

129659041 is an equidigital number, since it uses as much as digits as its factorization.

129659041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52151.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 129659041 is about 11386.7923929437. The cubic root of 129659041 is about 506.1364349033.

The spelling of 129659041 in words is "one hundred twenty-nine million, six hundred fifty-nine thousand, forty-one".