12540535 has 8 divisors (see below), whose sum is σ = 17198496. Its totient is φ = 8599200.

The previous prime is 12540529. The next prime is 12540581. The reversal of 12540535 is 53504521.

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

It is not a de Polignac number, because 12540535 - 2⁵ = 12540503 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179116 + ... + 179185.

It is an arithmetic number, because the mean of its divisors is an integer number (2149812).

Almost surely, 2^12540535 is an apocalyptic number.

12540535 is a deficient number, since it is larger than the sum of its proper divisors (4657961).

12540535 is an equidigital number, since it uses as much as digits as its factorization.

12540535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358313.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 12540535 is about 3541.2617807781. The cubic root of 12540535 is about 232.3300334071.

The spelling of 12540535 in words is "twelve million, five hundred forty thousand, five hundred thirty-five".