12147503 has 8 divisors (see below), whose sum is σ = 12899088. Its totient is φ = 11400064.

The previous prime is 12147463. The next prime is 12147529. The reversal of 12147503 is 30574121.

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

It is not a de Polignac number, because 12147503 - 2¹⁰ = 12146479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147533) 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, 6725 + ... + 8337.

It is an arithmetic number, because the mean of its divisors is an integer number (1612386).

Almost surely, 2^12147503 is an apocalyptic number.

12147503 is a deficient number, since it is larger than the sum of its proper divisors (751585).

12147503 is a wasteful number, since it uses less digits than its factorization.

12147503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12147503 is about 3485.3268139444. The cubic root of 12147503 is about 229.8770798765.

The spelling of 12147503 in words is "twelve million, one hundred forty-seven thousand, five hundred three".