129525215459 has 8 divisors (see below), whose sum is σ = 132545656320. Its totient is φ = 126505148616.

The previous prime is 129525215453. The next prime is 129525215483. The reversal of 129525215459 is 954512525921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129525215459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129525215453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681122 + ... + 850280.

It is an arithmetic number, because the mean of its divisors is an integer number (16568207040).

Almost surely, 2^129525215459 is an apocalyptic number.

129525215459 is a deficient number, since it is larger than the sum of its proper divisors (3020440861).

129525215459 is a wasteful number, since it uses less digits than its factorization.

129525215459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187009.

The product of its digits is 1620000, while the sum is 50.

The spelling of 129525215459 in words is "one hundred twenty-nine billion, five hundred twenty-five million, two hundred fifteen thousand, four hundred fifty-nine".