12487123 has 8 divisors (see below), whose sum is σ = 14339520. Its totient is φ = 10754280.

The previous prime is 12487109. The next prime is 12487133. The reversal of 12487123 is 32178421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12487123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12487091 and 12487100.

It is not an unprimeable number, because it can be changed into a prime (12487103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29665 + ... + 30082.

It is an arithmetic number, because the mean of its divisors is an integer number (1792440).

Almost surely, 2^12487123 is an apocalyptic number.

12487123 is a deficient number, since it is larger than the sum of its proper divisors (1852397).

12487123 is a wasteful number, since it uses less digits than its factorization.

12487123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59777.

The product of its digits is 2688, while the sum is 28.

The square root of 12487123 is about 3533.7123538851. The cubic root of 12487123 is about 231.9997213136. Note that the first 3 decimals are identical.

The spelling of 12487123 in words is "twelve million, four hundred eighty-seven thousand, one hundred twenty-three".