127125103 has 4 divisors (see below), whose sum is σ = 145285840. Its totient is φ = 108964368.

The previous prime is 127125101. The next prime is 127125109. The reversal of 127125103 is 301521721.

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: 301521721 = 6997 ⋅43093.

It is a cyclic number.

It is not a de Polignac number, because 127125103 - 2¹ = 127125101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127125101) 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, 9080358 + ... + 9080371.

It is an arithmetic number, because the mean of its divisors is an integer number (36321460).

Almost surely, 2^127125103 is an apocalyptic number.

127125103 is a deficient number, since it is larger than the sum of its proper divisors (18160737).

127125103 is an equidigital number, since it uses as much as digits as its factorization.

127125103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18160736.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 127125103 is about 11274.9768514175. The cubic root of 127125103 is about 502.8175635148.

Adding to 127125103 its reverse (301521721), we get a palindrome (428646824).

The spelling of 127125103 in words is "one hundred twenty-seven million, one hundred twenty-five thousand, one hundred three".