12512919 has 16 divisors (see below), whose sum is σ = 17279360. Its totient is φ = 8048160.

The previous prime is 12512911. The next prime is 12512939. The reversal of 12512919 is 91921521.

It is not a de Polignac number, because 12512919 - 2³ = 12512911 is a prime.

It is a super-2 number, since 2×12512919² = 313146283801122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512911) 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, 15024 + ... + 15834.

It is an arithmetic number, because the mean of its divisors is an integer number (1079960).

Almost surely, 2^12512919 is an apocalyptic number.

12512919 is a deficient number, since it is larger than the sum of its proper divisors (4766441).

12512919 is a wasteful number, since it uses less digits than its factorization.

12512919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990.

The product of its digits is 1620, while the sum is 30.

The square root of 12512919 is about 3537.3604566117. The cubic root of 12512919 is about 232.1593670670.

It can be divided in two parts, 12512 and 919, that added together give a palindrome (13431).

The spelling of 12512919 in words is "twelve million, five hundred twelve thousand, nine hundred nineteen".