12516045 has 16 divisors (see below), whose sum is σ = 20222592. Its totient is φ = 6609600.

The previous prime is 12516043. The next prime is 12516047. The reversal of 12516045 is 54061521.

It is an interprime number because it is at equal distance from previous prime (12516043) and next prime (12516047).

It is not a de Polignac number, because 12516045 - 2¹ = 12516043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2506 + ... + 5595.

It is an arithmetic number, because the mean of its divisors is an integer number (1263912).

Almost surely, 2^12516045 is an apocalyptic number.

12516045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12516045 is a deficient number, since it is larger than the sum of its proper divisors (7706547).

12516045 is a wasteful number, since it uses less digits than its factorization.

12516045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8212.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12516045 is about 3537.8022839045. The cubic root of 12516045 is about 232.1786982813.

Adding to 12516045 its reverse (54061521), we get a palindrome (66577566).

The spelling of 12516045 in words is "twelve million, five hundred sixteen thousand, forty-five".