129914751 has 8 divisors (see below), whose sum is σ = 179192880. Its totient is φ = 83623232.

The previous prime is 129914747. The next prime is 129914753. The reversal of 129914751 is 157419921.

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 129914751 - 2² = 129914747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129914753) 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, 746550 + ... + 746723.

It is an arithmetic number, because the mean of its divisors is an integer number (22399110).

Almost surely, 2^129914751 is an apocalyptic number.

129914751 is a deficient number, since it is larger than the sum of its proper divisors (49278129).

129914751 is a wasteful number, since it uses less digits than its factorization.

129914751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493305.

The product of its digits is 22680, while the sum is 39.

The square root of 129914751 is about 11398.0152219586. The cubic root of 129914751 is about 506.4689458685.

The spelling of 129914751 in words is "one hundred twenty-nine million, nine hundred fourteen thousand, seven hundred fifty-one".