128860351 has 2 divisors, whose sum is σ = 128860352. Its totient is φ = 128860350.

The previous prime is 128860343. The next prime is 128860387. The reversal of 128860351 is 153068821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128860351 - 2³ = 128860343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128860301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64430175 + 64430176.

It is an arithmetic number, because the mean of its divisors is an integer number (64430176).

Almost surely, 2^128860351 is an apocalyptic number.

128860351 is a deficient number, since it is larger than the sum of its proper divisors (1).

128860351 is an equidigital number, since it uses as much as digits as its factorization.

128860351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 128860351 is about 11351.6673224685. The cubic root of 128860351 is about 505.0950394601.

The spelling of 128860351 in words is "one hundred twenty-eight million, eight hundred sixty thousand, three hundred fifty-one".