128105548 has 12 divisors (see below), whose sum is σ = 224752192. Its totient is φ = 63890640.

The previous prime is 128105539. The next prime is 128105569. The reversal of 128105548 is 845501821.

It is a super-2 number, since 2×128105548² = 32822062856760608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38748 + ... + 41923.

Almost surely, 2^128105548 is an apocalyptic number.

It is an amenable number.

128105548 is a deficient number, since it is larger than the sum of its proper divisors (96646644).

128105548 is a wasteful number, since it uses less digits than its factorization.

128105548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81072 (or 81070 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 128105548 is about 11318.3721444384. The cubic root of 128105548 is about 504.1069049701.

The spelling of 128105548 in words is "one hundred twenty-eight million, one hundred five thousand, five hundred forty-eight".