12505124 has 12 divisors (see below), whose sum is σ = 21969024. Its totient is φ = 6228264.

The previous prime is 12505117. The next prime is 12505133. The reversal of 12505124 is 42150521.

It is a super-3 number, since 3×12505124³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12505096 and 12505105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892 + ... + 6995.

It is an arithmetic number, because the mean of its divisors is an integer number (1830752).

Almost surely, 2^12505124 is an apocalyptic number.

It is an amenable number.

12505124 is a deficient number, since it is larger than the sum of its proper divisors (9463900).

12505124 is a wasteful number, since it uses less digits than its factorization.

12505124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12154 (or 12152 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 12505124 is about 3536.2584747159. The cubic root of 12505124 is about 232.1111486835. Note that the first 4 decimals are identical.

Adding to 12505124 its reverse (42150521), we get a palindrome (54655645).

The spelling of 12505124 in words is "twelve million, five hundred five thousand, one hundred twenty-four".