325149989 has 2 divisors, whose sum is σ = 325149990. Its totient is φ = 325149988.

The previous prime is 325149971. The next prime is 325149997. The reversal of 325149989 is 989941523.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211557025 + 113592964 = 14545^2 + 10658^2 .

It is a cyclic number.

It is not a de Polignac number, because 325149989 - 2¹⁶ = 325084453 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 (325149949) 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, 162574994 + 162574995.

It is an arithmetic number, because the mean of its divisors is an integer number (162574995).

Almost surely, 2^325149989 is an apocalyptic number.

It is an amenable number.

325149989 is a deficient number, since it is larger than the sum of its proper divisors (1).

325149989 is an equidigital number, since it uses as much as digits as its factorization.

325149989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The square root of 325149989 is about 18031.9158438586. The cubic root of 325149989 is about 687.6401840421.

The spelling of 325149989 in words is "three hundred twenty-five million, one hundred forty-nine thousand, nine hundred eighty-nine".