125202403 has 4 divisors (see below), whose sum is σ = 125236408. Its totient is φ = 125168400.

The previous prime is 125202379. The next prime is 125202421. The reversal of 125202403 is 304202521.

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 125202403 - 2⁹ = 125201891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125202463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10701 + ... + 19102.

It is an arithmetic number, because the mean of its divisors is an integer number (31309102).

Almost surely, 2^125202403 is an apocalyptic number.

125202403 is a deficient number, since it is larger than the sum of its proper divisors (34005).

125202403 is an equidigital number, since it uses as much as digits as its factorization.

125202403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34004.

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

The square root of 125202403 is about 11189.3879636019. The cubic root of 125202403 is about 500.2697251372.

Adding to 125202403 its reverse (304202521), we get a palindrome (429404924).

The spelling of 125202403 in words is "one hundred twenty-five million, two hundred two thousand, four hundred three".