325128407 has 2 divisors, whose sum is σ = 325128408. Its totient is φ = 325128406.

The previous prime is 325128359. The next prime is 325128431. The reversal of 325128407 is 704821523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 325128407 - 2⁶ = 325128343 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 (325128467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162564203 + 162564204.

It is an arithmetic number, because the mean of its divisors is an integer number (162564204).

Almost surely, 2^325128407 is an apocalyptic number.

325128407 is a deficient number, since it is larger than the sum of its proper divisors (1).

325128407 is an equidigital number, since it uses as much as digits as its factorization.

325128407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 325128407 is about 18031.3173950214. The cubic root of 325128407 is about 687.6249695469.

The spelling of 325128407 in words is "three hundred twenty-five million, one hundred twenty-eight thousand, four hundred seven".