325161689 has 2 divisors, whose sum is σ = 325161690. Its totient is φ = 325161688.

The previous prime is 325161673. The next prime is 325161719. The reversal of 325161689 is 986161523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251064025 + 74097664 = 15845^2 + 8608^2 .

It is a cyclic number.

It is not a de Polignac number, because 325161689 - 2⁴ = 325161673 is a prime.

It is not a weakly prime, because it can be changed into another prime (325161619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162580844 + 162580845.

It is an arithmetic number, because the mean of its divisors is an integer number (162580845).

Almost surely, 2^325161689 is an apocalyptic number.

It is an amenable number.

325161689 is a deficient number, since it is larger than the sum of its proper divisors (1).

325161689 is an equidigital number, since it uses as much as digits as its factorization.

325161689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 325161689 is about 18032.2402657019. The cubic root of 325161689 is about 687.6484318189.

The spelling of 325161689 in words is "three hundred twenty-five million, one hundred sixty-one thousand, six hundred eighty-nine".