129024741 has 8 divisors (see below), whose sum is σ = 177965280. Its totient is φ = 83050352.

The previous prime is 129024703. The next prime is 129024743. The reversal of 129024741 is 147420921.

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 129024741 - 2⁹ = 129024229 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 129024699 and 129024708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129024743) 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, 741435 + ... + 741608.

It is an arithmetic number, because the mean of its divisors is an integer number (22245660).

Almost surely, 2^129024741 is an apocalyptic number.

It is an amenable number.

129024741 is a deficient number, since it is larger than the sum of its proper divisors (48940539).

129024741 is a wasteful number, since it uses less digits than its factorization.

129024741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483075.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 129024741 is about 11358.9058011764. The cubic root of 129024741 is about 505.3097351599.

The spelling of 129024741 in words is "one hundred twenty-nine million, twenty-four thousand, seven hundred forty-one".