12516061 has 4 divisors (see below), whose sum is σ = 12570012. Its totient is φ = 12462112.

The previous prime is 12516059. The next prime is 12516073. The reversal of 12516061 is 16061521.

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 4284900 + 8231161 = 2070^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 12516061 - 2¹ = 12516059 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 (12516011) 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, 26626 + ... + 27091.

It is an arithmetic number, because the mean of its divisors is an integer number (3142503).

Almost surely, 2^12516061 is an apocalyptic number.

It is an amenable number.

12516061 is a deficient number, since it is larger than the sum of its proper divisors (53951).

12516061 is an equidigital number, since it uses as much as digits as its factorization.

12516061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53950.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12516061 is about 3537.8045451947. The cubic root of 12516061 is about 232.1787972171.

Adding to 12516061 its reverse (16061521), we get a palindrome (28577582).

The spelling of 12516061 in words is "twelve million, five hundred sixteen thousand, sixty-one".