12801535 has 8 divisors (see below), whose sum is σ = 16170480. Its totient is φ = 9702144.

The previous prime is 12801533. The next prime is 12801541. The reversal of 12801535 is 53510821.

It is a happy number.

12801535 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12801535 - 2¹ = 12801533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12801533) 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, 67282 + ... + 67471.

It is an arithmetic number, because the mean of its divisors is an integer number (2021310).

Almost surely, 2^12801535 is an apocalyptic number.

12801535 is a deficient number, since it is larger than the sum of its proper divisors (3368945).

12801535 is a wasteful number, since it uses less digits than its factorization.

12801535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134777.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 12801535 is about 3577.9232803401. The cubic root of 12801535 is about 233.9307694483.

The spelling of 12801535 in words is "twelve million, eight hundred one thousand, five hundred thirty-five".