128960451 has 8 divisors (see below), whose sum is σ = 191052560. Its totient is φ = 85973616.

The previous prime is 128960449. The next prime is 128960473. The reversal of 128960451 is 154069821.

It is not a de Polignac number, because 128960451 - 2¹ = 128960449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128960411) 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, 2388130 + ... + 2388183.

It is an arithmetic number, because the mean of its divisors is an integer number (23881570).

Almost surely, 2^128960451 is an apocalyptic number.

128960451 is a deficient number, since it is larger than the sum of its proper divisors (62092109).

128960451 is an equidigital number, since it uses as much as digits as its factorization.

128960451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4776322 (or 4776316 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 128960451 is about 11356.0755104922. The cubic root of 128960451 is about 505.2257932227.

The spelling of 128960451 in words is "one hundred twenty-eight million, nine hundred sixty thousand, four hundred fifty-one".