128454208 has 14 divisors (see below), whose sum is σ = 254901446. Its totient is φ = 64227072.

The previous prime is 128454199. The next prime is 128454217. The reversal of 128454208 is 802454821.

It is an interprime number because it is at equal distance from previous prime (128454199) and next prime (128454217).

It can be written as a sum of positive squares in only one way, i.e., 85525504 + 42928704 = 9248^2 + 6552^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1003485 + ... + 1003612.

Almost surely, 2^128454208 is an apocalyptic number.

It is an amenable number.

128454208 is a deficient number, since it is larger than the sum of its proper divisors (126447238).

128454208 is an equidigital number, since it uses as much as digits as its factorization.

128454208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007109 (or 2007099 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 128454208 is about 11333.7640702460. The cubic root of 128454208 is about 504.5638268912.

The spelling of 128454208 in words is "one hundred twenty-eight million, four hundred fifty-four thousand, two hundred eight".