12503045 has 8 divisors (see below), whose sum is σ = 15793440. Its totient is φ = 9475920.

The previous prime is 12503027. The next prime is 12503047. The reversal of 12503045 is 54030521.

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

It is not a de Polignac number, because 12503045 - 2¹² = 12498949 is a prime.

It is a super-5 number, since 5×12503045⁵ (a number of 37 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65711 + ... + 65900.

It is an arithmetic number, because the mean of its divisors is an integer number (1974180).

Almost surely, 2^12503045 is an apocalyptic number.

It is an amenable number.

12503045 is a deficient number, since it is larger than the sum of its proper divisors (3290395).

12503045 is a wasteful number, since it uses less digits than its factorization.

12503045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131635.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 12503045 is about 3535.9645077404. The cubic root of 12503045 is about 232.0982850013.

Adding to 12503045 its reverse (54030521), we get a palindrome (66533566).

The spelling of 12503045 in words is "twelve million, five hundred three thousand, forty-five".