128957103 has 40 divisors (see below), whose sum is σ = 212381136. Its totient is φ = 77328000.

The previous prime is 128957093. The next prime is 128957107. The reversal of 128957103 is 301759821.

128957103 is a `hidden beast` number, since 1 + 2 + 89 + 571 + 0 + 3 = 666.

It is not a de Polignac number, because 128957103 - 2⁵ = 128957071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128957107) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 89275 + ... + 90707.

Almost surely, 2^128957103 is an apocalyptic number.

128957103 is a deficient number, since it is larger than the sum of its proper divisors (83424033).

128957103 is a wasteful number, since it uses less digits than its factorization.

128957103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1548 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 128957103 is about 11355.9280994554. The cubic root of 128957103 is about 505.2214210539.

The spelling of 128957103 in words is "one hundred twenty-eight million, nine hundred fifty-seven thousand, one hundred three".