128457283 has 2 divisors, whose sum is σ = 128457284. Its totient is φ = 128457282.

The previous prime is 128457281. The next prime is 128457289. The reversal of 128457283 is 382754821.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (382754821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128457283 - 2¹ = 128457281 is a prime.

Together with 128457281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (128457281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64228641 + 64228642.

It is an arithmetic number, because the mean of its divisors is an integer number (64228642).

Almost surely, 2^128457283 is an apocalyptic number.

128457283 is a deficient number, since it is larger than the sum of its proper divisors (1).

128457283 is an equidigital number, since it uses as much as digits as its factorization.

128457283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 40.

The square root of 128457283 is about 11333.8997260431. The cubic root of 128457283 is about 504.5678530248.

The spelling of 128457283 in words is "one hundred twenty-eight million, four hundred fifty-seven thousand, two hundred eighty-three".