128516545 has 16 divisors (see below), whose sum is σ = 164689920. Its totient is φ = 96062400.

The previous prime is 128516537. The next prime is 128516579. The reversal of 128516545 is 545615821.

It is not a de Polignac number, because 128516545 - 2³ = 128516537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9801 + ... + 18790.

It is an arithmetic number, because the mean of its divisors is an integer number (10293120).

Almost surely, 2^128516545 is an apocalyptic number.

It is an amenable number.

128516545 is a deficient number, since it is larger than the sum of its proper divisors (36173375).

128516545 is a wasteful number, since it uses less digits than its factorization.

128516545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28656.

The product of its digits is 48000, while the sum is 37.

The square root of 128516545 is about 11336.5137939315. The cubic root of 128516545 is about 504.6454329080.

The spelling of 128516545 in words is "one hundred twenty-eight million, five hundred sixteen thousand, five hundred forty-five".