12521413535 has 8 divisors (see below), whose sum is σ = 15816522480. Its totient is φ = 9489913344.

The previous prime is 12521413507. The next prime is 12521413537. The reversal of 12521413535 is 53531412521.

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 12521413535 - 2¹⁴ = 12521397151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521413537) 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, 65902082 + ... + 65902271.

It is an arithmetic number, because the mean of its divisors is an integer number (1977065310).

Almost surely, 2^12521413535 is an apocalyptic number.

12521413535 is a deficient number, since it is larger than the sum of its proper divisors (3295108945).

12521413535 is a wasteful number, since it uses less digits than its factorization.

12521413535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131804377.

The product of its digits is 18000, while the sum is 32.

The spelling of 12521413535 in words is "twelve billion, five hundred twenty-one million, four hundred thirteen thousand, five hundred thirty-five".