126025403 has 16 divisors (see below), whose sum is σ = 155620800. Its totient is φ = 101662848.

The previous prime is 126025391. The next prime is 126025411. The reversal of 126025403 is 304520621.

It is not a de Polignac number, because 126025403 - 2⁸ = 126025147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126025433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4976 + ... + 16637.

It is an arithmetic number, because the mean of its divisors is an integer number (9726300).

Almost surely, 2^126025403 is an apocalyptic number.

126025403 is a deficient number, since it is larger than the sum of its proper divisors (29595397).

126025403 is an equidigital number, since it uses as much as digits as its factorization.

126025403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21651 (or 21637 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 126025403 is about 11226.1036428496. The cubic root of 126025403 is about 501.3634824514.

The spelling of 126025403 in words is "one hundred twenty-six million, twenty-five thousand, four hundred three".