12535081 has 12 divisors (see below), whose sum is σ = 13781572. Its totient is φ = 11333664.

The previous prime is 12535063. The next prime is 12535087. The reversal of 12535081 is 18053521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2005056 + 10530025 = 1416^2 + 3245^2 .

It is not a de Polignac number, because 12535081 - 2⁷ = 12534953 is a prime.

It is a super-2 number, since 2×12535081² = 314256511353122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12535087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45115 + ... + 45391.

Almost surely, 2^12535081 is an apocalyptic number.

It is an amenable number.

12535081 is a deficient number, since it is larger than the sum of its proper divisors (1246491).

12535081 is an equidigital number, since it uses as much as digits as its factorization.

12535081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408 (or 349 counting only the distinct ones).

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

The square root of 12535081 is about 3540.4916325279. The cubic root of 12535081 is about 232.2963476634.

The spelling of 12535081 in words is "twelve million, five hundred thirty-five thousand, eighty-one".