12642535 has 8 divisors (see below), whose sum is σ = 15196896. Its totient is φ = 10096800.

The previous prime is 12642533. The next prime is 12642541. The reversal of 12642535 is 53524621.

12642535 is digitally balanced in base 2, 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 not a de Polignac number, because 12642535 - 2¹ = 12642533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642533) 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, 1702 + ... + 5308.

It is an arithmetic number, because the mean of its divisors is an integer number (1899612).

Almost surely, 2^12642535 is an apocalyptic number.

12642535 is a deficient number, since it is larger than the sum of its proper divisors (2554361).

12642535 is an equidigital number, since it uses as much as digits as its factorization.

12642535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313.

The product of its digits is 7200, while the sum is 28.

The square root of 12642535 is about 3555.6342612817. The cubic root of 12642535 is about 232.9582283729.

The spelling of 12642535 in words is "twelve million, six hundred forty-two thousand, five hundred thirty-five".