12504312 has 24 divisors (see below), whose sum is σ = 33866040. Its totient is φ = 4168080.

The previous prime is 12504311. The next prime is 12504353. The reversal of 12504312 is 21340521.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12504311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86764 + ... + 86907.

It is an arithmetic number, because the mean of its divisors is an integer number (1411085).

Almost surely, 2^12504312 is an apocalyptic number.

12504312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12504312 is an abundant number, since it is smaller than the sum of its proper divisors (21361728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12504312 is a wasteful number, since it uses less digits than its factorization.

12504312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173683 (or 173676 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12504312 is about 3536.1436622400. The cubic root of 12504312 is about 232.1061246541.

Adding to 12504312 its reverse (21340521), we get a palindrome (33844833).

The spelling of 12504312 in words is "twelve million, five hundred four thousand, three hundred twelve".