325542161 has 16 divisors (see below), whose sum is σ = 389069568. Its totient is φ = 266323200.

The previous prime is 325542149. The next prime is 325542167. The reversal of 325542161 is 161245523.

325542161 = T₂₁₀ + T₂₁₁ + ... + T₁₂₅₁.

It is a cyclic number.

It is not a de Polignac number, because 325542161 - 2⁶ = 325542097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (325542167) 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 in 15 ways as a sum of consecutive naturals, for example, 81941 + ... + 85821.

It is an arithmetic number, because the mean of its divisors is an integer number (24316848).

Almost surely, 2^325542161 is an apocalyptic number.

It is an amenable number.

325542161 is a deficient number, since it is larger than the sum of its proper divisors (63527407).

325542161 is a wasteful number, since it uses less digits than its factorization.

325542161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4432.

The product of its digits is 7200, while the sum is 29.

The square root of 325542161 is about 18042.7869521313. The cubic root of 325542161 is about 687.9165333044.

Adding to 325542161 its reverse (161245523), we get a palindrome (486787684).

The spelling of 325542161 in words is "three hundred twenty-five million, five hundred forty-two thousand, one hundred sixty-one".