125420103 has 16 divisors (see below), whose sum is σ = 186048000. Its totient is φ = 83505240.

The previous prime is 125420089. The next prime is 125420143. The reversal of 125420103 is 301024521.

It is not a de Polignac number, because 125420103 - 2²¹ = 123322951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125420143) 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, 22048 + ... + 27146.

It is an arithmetic number, because the mean of its divisors is an integer number (11628000).

Almost surely, 2^125420103 is an apocalyptic number.

125420103 is a deficient number, since it is larger than the sum of its proper divisors (60627897).

125420103 is an equidigital number, since it uses as much as digits as its factorization.

125420103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019 (or 6013 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125420103 is about 11199.1117058452. Note that the first 3 decimals coincide. The cubic root of 125420103 is about 500.5595109947.

Adding to 125420103 its reverse (301024521), we get a palindrome (426444624).

The spelling of 125420103 in words is "one hundred twenty-five million, four hundred twenty thousand, one hundred three".