128894103 has 36 divisors (see below), whose sum is σ = 204232392. Its totient is φ = 78287040.

The previous prime is 128894099. The next prime is 128894113. The reversal of 128894103 is 301498821.

It is not a de Polignac number, because 128894103 - 2² = 128894099 is a prime.

It is a super-2 number, since 2×128894103² = 33227379576349218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128894113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 125733 + ... + 126753.

It is an arithmetic number, because the mean of its divisors is an integer number (5673122).

Almost surely, 2^128894103 is an apocalyptic number.

128894103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128894103 is a deficient number, since it is larger than the sum of its proper divisors (75338289).

128894103 is a wasteful number, since it uses less digits than its factorization.

128894103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 128894103 is about 11353.1538789889. The cubic root of 128894103 is about 505.1391349464.

The spelling of 128894103 in words is "one hundred twenty-eight million, eight hundred ninety-four thousand, one hundred three".