128882547 has 12 divisors (see below), whose sum is σ = 194258064. Its totient is φ = 82185840.

The previous prime is 128882543. The next prime is 128882563. The reversal of 128882547 is 745288821.

It is a happy number.

128882547 is a `hidden beast` number, since 1 + 28 + 8 + 82 + 547 = 666.

It is not a de Polignac number, because 128882547 - 2² = 128882543 is a prime.

It is a super-2 number, since 2×128882547² = 33221421842414418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128882543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 311104 + ... + 311517.

It is an arithmetic number, because the mean of its divisors is an integer number (16188172).

Almost surely, 2^128882547 is an apocalyptic number.

128882547 is a deficient number, since it is larger than the sum of its proper divisors (65375517).

128882547 is a wasteful number, since it uses less digits than its factorization.

128882547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622650 (or 622647 counting only the distinct ones).

The product of its digits is 286720, while the sum is 45.

The square root of 128882547 is about 11352.6449341112. The cubic root of 128882547 is about 505.1240384132.

The spelling of 128882547 in words is "one hundred twenty-eight million, eight hundred eighty-two thousand, five hundred forty-seven".