128716351 has 2 divisors, whose sum is σ = 128716352. Its totient is φ = 128716350.

The previous prime is 128716337. The next prime is 128716387. The reversal of 128716351 is 153617821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128716351 - 2⁷ = 128716223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128716321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64358175 + 64358176.

It is an arithmetic number, because the mean of its divisors is an integer number (64358176).

Almost surely, 2^128716351 is an apocalyptic number.

128716351 is a deficient number, since it is larger than the sum of its proper divisors (1).

128716351 is an equidigital number, since it uses as much as digits as its factorization.

128716351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 128716351 is about 11345.3228689183. The cubic root of 128716351 is about 504.9068233150.

The spelling of 128716351 in words is "one hundred twenty-eight million, seven hundred sixteen thousand, three hundred fifty-one".