12541403 has 6 divisors (see below), whose sum is σ = 14589036. Its totient is φ = 10749732.

The previous prime is 12541381. The next prime is 12541411. The reversal of 12541403 is 30414521.

It is not a de Polignac number, because 12541403 - 2⁸ = 12541147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12541493) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127925 + ... + 128022.

It is an arithmetic number, because the mean of its divisors is an integer number (2431506).

Almost surely, 2^12541403 is an apocalyptic number.

12541403 is a deficient number, since it is larger than the sum of its proper divisors (2047633).

12541403 is an equidigital number, since it uses as much as digits as its factorization.

12541403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255961 (or 255954 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 12541403 is about 3541.3843338446. The cubic root of 12541403 is about 232.3353935669.

Adding to 12541403 its reverse (30414521), we get a palindrome (42955924).

The spelling of 12541403 in words is "twelve million, five hundred forty-one thousand, four hundred three".