12936545 has 8 divisors (see below), whose sum is σ = 15547560. Its totient is φ = 10333440.

The previous prime is 12936533. The next prime is 12936551. The reversal of 12936545 is 54563921.

It can be written as a sum of positive squares in 4 ways, for example, as 5329 + 12931216 = 73^2 + 3596^2 .

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

It is not a de Polignac number, because 12936545 - 2⁴ = 12936529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2585 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (1943445).

Almost surely, 2^12936545 is an apocalyptic number.

It is an amenable number.

12936545 is a deficient number, since it is larger than the sum of its proper divisors (2611015).

12936545 is an equidigital number, since it uses as much as digits as its factorization.

12936545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3955.

The product of its digits is 32400, while the sum is 35.

The square root of 12936545 is about 3596.7408858576. The cubic root of 12936545 is about 234.7502703989.

The spelling of 12936545 in words is "twelve million, nine hundred thirty-six thousand, five hundred forty-five".