128210351 has 2 divisors, whose sum is σ = 128210352. Its totient is φ = 128210350.

The previous prime is 128210323. The next prime is 128210359. The reversal of 128210351 is 153012821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128210351 - 2⁶ = 128210287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128210359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64105175 + 64105176.

It is an arithmetic number, because the mean of its divisors is an integer number (64105176).

Almost surely, 2^128210351 is an apocalyptic number.

128210351 is a deficient number, since it is larger than the sum of its proper divisors (1).

128210351 is an equidigital number, since it uses as much as digits as its factorization.

128210351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 128210351 is about 11323.0009714739. Note that the first 3 decimals coincide. The cubic root of 128210351 is about 504.2443372569.

The spelling of 128210351 in words is "one hundred twenty-eight million, two hundred ten thousand, three hundred fifty-one".