128654481 has 8 divisors (see below), whose sum is σ = 171591840. Its totient is φ = 85743392.

The previous prime is 128654473. The next prime is 128654483. The reversal of 128654481 is 184456821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128654481 - 2³ = 128654473 is a prime.

It is a super-2 number, since 2×128654481² = 33103950962758722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128654483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14746 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (21448980).

Almost surely, 2^128654481 is an apocalyptic number.

It is an amenable number.

128654481 is a deficient number, since it is larger than the sum of its proper divisors (42937359).

128654481 is an equidigital number, since it uses as much as digits as its factorization.

128654481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135.

The product of its digits is 61440, while the sum is 39.

The square root of 128654481 is about 11342.5958669081. The cubic root of 128654481 is about 504.8259126112.

The spelling of 128654481 in words is "one hundred twenty-eight million, six hundred fifty-four thousand, four hundred eighty-one".