13125603 has 8 divisors (see below), whose sum is σ = 18104400. Its totient is φ = 8448608.

The previous prime is 13125569. The next prime is 13125611. The reversal of 13125603 is 30652131.

13125603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13125603 - 2⁸ = 13125347 is a prime.

It is a super-2 number, since 2×13125603² = 344562908227218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13125603.

It is not an unprimeable number, because it can be changed into a prime (13125653) 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, 75348 + ... + 75521.

It is an arithmetic number, because the mean of its divisors is an integer number (2263050).

Almost surely, 2^13125603 is an apocalyptic number.

13125603 is a deficient number, since it is larger than the sum of its proper divisors (4978797).

13125603 is a wasteful number, since it uses less digits than its factorization.

13125603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150901.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13125603 is about 3622.9274074980. The cubic root of 13125603 is about 235.8883113662. Note that the first 3 decimals are identical.

Adding to 13125603 its reverse (30652131), we get a palindrome (43777734).

The spelling of 13125603 in words is "thirteen million, one hundred twenty-five thousand, six hundred three".