125002403 has 4 divisors (see below), whose sum is σ = 125539128. Its totient is φ = 124465680.

The previous prime is 125002393. The next prime is 125002439. The reversal of 125002403 is 304200521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125002403 - 2²⁰ = 123953827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125002453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268013 + ... + 268478.

It is an arithmetic number, because the mean of its divisors is an integer number (31384782).

Almost surely, 2^125002403 is an apocalyptic number.

125002403 is a deficient number, since it is larger than the sum of its proper divisors (536725).

125002403 is an equidigital number, since it uses as much as digits as its factorization.

125002403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536724.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 125002403 is about 11180.4473524095. The cubic root of 125002403 is about 500.0032039795.

Adding to 125002403 its reverse (304200521), we get a palindrome (429202924).

The spelling of 125002403 in words is "one hundred twenty-five million, two thousand, four hundred three".