129746441 has 8 divisors (see below), whose sum is σ = 141645504. Its totient is φ = 117864720.

The previous prime is 129746429. The next prime is 129746467. The reversal of 129746441 is 144647921.

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 129746441 - 2¹⁰ = 129745417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129746395 and 129746404.

It is not an unprimeable number, because it can be changed into a prime (129746471) 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, 15140 + ... + 22106.

It is an arithmetic number, because the mean of its divisors is an integer number (17705688).

Almost surely, 2^129746441 is an apocalyptic number.

129746441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

129746441 is a deficient number, since it is larger than the sum of its proper divisors (11899063).

129746441 is a wasteful number, since it uses less digits than its factorization.

129746441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8671.

The product of its digits is 48384, while the sum is 38.

The square root of 129746441 is about 11390.6295260622. The cubic root of 129746441 is about 506.2501341055.

The spelling of 129746441 in words is "one hundred twenty-nine million, seven hundred forty-six thousand, four hundred forty-one".