12456061 has 4 divisors (see below), whose sum is σ = 12584572. Its totient is φ = 12327552.

The previous prime is 12456049. The next prime is 12456071. The reversal of 12456061 is 16065421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7022500 + 5433561 = 2650^2 + 2331^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12456061 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 (12456011) 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 3 ways as a sum of consecutive naturals, for example, 64110 + ... + 64303.

It is an arithmetic number, because the mean of its divisors is an integer number (3146143).

Almost surely, 2^12456061 is an apocalyptic number.

It is an amenable number.

12456061 is a deficient number, since it is larger than the sum of its proper divisors (128511).

12456061 is an equidigital number, since it uses as much as digits as its factorization.

12456061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128510.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12456061 is about 3529.3145226800. The cubic root of 12456061 is about 231.8071934069.

The spelling of 12456061 in words is "twelve million, four hundred fifty-six thousand, sixty-one".