125004403 has 2 divisors, whose sum is σ = 125004404. Its totient is φ = 125004402.

The previous prime is 125004377. The next prime is 125004457. The reversal of 125004403 is 304400521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125004403 - 2⁵ = 125004371 is a prime.

It is a super-2 number, since 2×125004403² = 31252201538772818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125014403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62502201 + 62502202.

It is an arithmetic number, because the mean of its divisors is an integer number (62502202).

Almost surely, 2^125004403 is an apocalyptic number.

125004403 is a deficient number, since it is larger than the sum of its proper divisors (1).

125004403 is an equidigital number, since it uses as much as digits as its factorization.

125004403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 125004403 is about 11180.5367939111. The cubic root of 125004403 is about 500.0058705977.

Adding to 125004403 its reverse (304400521), we get a palindrome (429404924).

The spelling of 125004403 in words is "one hundred twenty-five million, four thousand, four hundred three".