325431643 has 2 divisors, whose sum is σ = 325431644. Its totient is φ = 325431642.

The previous prime is 325431571. The next prime is 325431661. The reversal of 325431643 is 346134523.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 325431643 - 2²¹ = 323334491 is a prime.

It is not a weakly prime, because it can be changed into another prime (325431143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162715821 + 162715822.

It is an arithmetic number, because the mean of its divisors is an integer number (162715822).

Almost surely, 2^325431643 is an apocalyptic number.

325431643 is a deficient number, since it is larger than the sum of its proper divisors (1).

325431643 is an equidigital number, since it uses as much as digits as its factorization.

325431643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 325431643 is about 18039.7240278226. The cubic root of 325431643 is about 687.8386777825.

The spelling of 325431643 in words is "three hundred twenty-five million, four hundred thirty-one thousand, six hundred forty-three".