125209303 has 4 divisors (see below), whose sum is σ = 125685648. Its totient is φ = 124732960.

The previous prime is 125209289. The next prime is 125209313. The reversal of 125209303 is 303902521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303902521 = 13 ⋅23377117.

It is a cyclic number.

It is not a de Polignac number, because 125209303 - 2²¹ = 123112151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125209313) 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 in 3 ways as a sum of consecutive naturals, for example, 237778 + ... + 238303.

It is an arithmetic number, because the mean of its divisors is an integer number (31421412).

Almost surely, 2^125209303 is an apocalyptic number.

125209303 is a deficient number, since it is larger than the sum of its proper divisors (476345).

125209303 is an equidigital number, since it uses as much as digits as its factorization.

125209303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476344.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 125209303 is about 11189.6962872099. The cubic root of 125209303 is about 500.2789150505.

The spelling of 125209303 in words is "one hundred twenty-five million, two hundred nine thousand, three hundred three".