13125003 has 8 divisors (see below), whose sum is σ = 18529488. Its totient is φ = 8235264.

The previous prime is 13125001. The next prime is 13125053. The reversal of 13125003 is 30052131.

It is a happy number.

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

It is not a de Polignac number, because 13125003 - 2¹ = 13125001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13125001) 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, 128626 + ... + 128727.

It is an arithmetic number, because the mean of its divisors is an integer number (2316186).

Almost surely, 2^13125003 is an apocalyptic number.

13125003 is a deficient number, since it is larger than the sum of its proper divisors (5404485).

13125003 is a wasteful number, since it uses less digits than its factorization.

13125003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257373.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 13125003 is about 3622.8446005867. The cubic root of 13125003 is about 235.8847169880.

Adding to 13125003 its reverse (30052131), we get a palindrome (43177134).

The spelling of 13125003 in words is "thirteen million, one hundred twenty-five thousand, three".