12567613 has 4 divisors (see below), whose sum is σ = 12576988. Its totient is φ = 12558240.

The previous prime is 12567587. The next prime is 12567623. The reversal of 12567613 is 31676521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 994009 = 3402^2 + 997^2 .

It is a cyclic number.

It is not a de Polignac number, because 12567613 - 2⁹ = 12567101 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 (12567623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2256 + ... + 5497.

It is an arithmetic number, because the mean of its divisors is an integer number (3144247).

Almost surely, 2^12567613 is an apocalyptic number.

It is an amenable number.

12567613 is a deficient number, since it is larger than the sum of its proper divisors (9375).

12567613 is an equidigital number, since it uses as much as digits as its factorization.

12567613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374.

The product of its digits is 7560, while the sum is 31.

The square root of 12567613 is about 3545.0829327394. The cubic root of 12567613 is about 232.4971318103.

The spelling of 12567613 in words is "twelve million, five hundred sixty-seven thousand, six hundred thirteen".