12151503 has 48 divisors (see below), whose sum is σ = 22241856. Its totient is φ = 6220800.

The previous prime is 12151501. The next prime is 12151511. The reversal of 12151503 is 30515121.

12151503 is a `hidden beast` number, since 12 + 151 + 503 = 666.

12151503 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12151503 - 2¹ = 12151501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30103 + ... + 30503.

It is an arithmetic number, because the mean of its divisors is an integer number (463372).

Almost surely, 2^12151503 is an apocalyptic number.

12151503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12151503 is a deficient number, since it is larger than the sum of its proper divisors (10090353).

12151503 is a wasteful number, since it uses less digits than its factorization.

12151503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 12151503 is about 3485.9006009925. The cubic root of 12151503 is about 229.9023088587.

Adding to 12151503 its reverse (30515121), we get a palindrome (42666624).

The spelling of 12151503 in words is "twelve million, one hundred fifty-one thousand, five hundred three".