127628103 has 4 divisors (see below), whose sum is σ = 170170808. Its totient is φ = 85085400.

The previous prime is 127628089. The next prime is 127628107. The reversal of 127628103 is 301826721.

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

It is not a de Polignac number, because 127628103 - 2¹⁰ = 127627079 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 (127628107) 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, 21271348 + ... + 21271353.

It is an arithmetic number, because the mean of its divisors is an integer number (42542702).

Almost surely, 2^127628103 is an apocalyptic number.

127628103 is a deficient number, since it is larger than the sum of its proper divisors (42542705).

127628103 is an equidigital number, since it uses as much as digits as its factorization.

127628103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42542704.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 127628103 is about 11297.2608627047. The cubic root of 127628103 is about 503.4798622650.

The spelling of 127628103 in words is "one hundred twenty-seven million, six hundred twenty-eight thousand, one hundred three".