128455307 has 2 divisors, whose sum is σ = 128455308. Its totient is φ = 128455306.

The previous prime is 128455291. The next prime is 128455309. The reversal of 128455307 is 703554821.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (703554821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128455307 - 2⁴ = 128455291 is a prime.

Together with 128455309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128455309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64227653 + 64227654.

It is an arithmetic number, because the mean of its divisors is an integer number (64227654).

Almost surely, 2^128455307 is an apocalyptic number.

128455307 is a deficient number, since it is larger than the sum of its proper divisors (1).

128455307 is an equidigital number, since it uses as much as digits as its factorization.

128455307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 128455307 is about 11333.8125535938. The cubic root of 128455307 is about 504.5652658322.

The spelling of 128455307 in words is "one hundred twenty-eight million, four hundred fifty-five thousand, three hundred seven".