325431409 has 4 divisors (see below), whose sum is σ = 325655920. Its totient is φ = 325206900.

The previous prime is 325431383. The next prime is 325431413. The reversal of 325431409 is 904134523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 325431409 - 2²³ = 317042801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325431479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110067 + ... + 112984.

It is an arithmetic number, because the mean of its divisors is an integer number (81413980).

Almost surely, 2^325431409 is an apocalyptic number.

It is an amenable number.

325431409 is a deficient number, since it is larger than the sum of its proper divisors (224511).

325431409 is a wasteful number, since it uses less digits than its factorization.

325431409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224510.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 325431409 is about 18039.7175421346. The cubic root of 325431409 is about 687.8385129202.

The spelling of 325431409 in words is "three hundred twenty-five million, four hundred thirty-one thousand, four hundred nine".