129767485 has 8 divisors (see below), whose sum is σ = 155854296. Its totient is φ = 103725120.

The previous prime is 129767467. The next prime is 129767513. The reversal of 129767485 is 584767921.

It can be written as a sum of positive squares in 4 ways, for example, as 25462116 + 104305369 = 5046^2 + 10213^2 .

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

It is not a de Polignac number, because 129767485 - 2¹³ = 129759293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4306 + ... + 16675.

It is an arithmetic number, because the mean of its divisors is an integer number (19481787).

Almost surely, 2^129767485 is an apocalyptic number.

It is an amenable number.

129767485 is a deficient number, since it is larger than the sum of its proper divisors (26086811).

129767485 is a wasteful number, since it uses less digits than its factorization.

129767485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22223.

The product of its digits is 846720, while the sum is 49.

The square root of 129767485 is about 11391.5532303545. The cubic root of 129767485 is about 506.2775027481.

The spelling of 129767485 in words is "one hundred twenty-nine million, seven hundred sixty-seven thousand, four hundred eighty-five".