325081391 has 4 divisors (see below), whose sum is σ = 325233984. Its totient is φ = 324928800.

The previous prime is 325081373. The next prime is 325081397. The reversal of 325081391 is 193180523.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 193180523 = 1103 ⋅175141.

It is a cyclic number.

It is not a de Polignac number, because 325081391 - 2¹⁸ = 324819247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325081397) 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, 73055 + ... + 77376.

It is an arithmetic number, because the mean of its divisors is an integer number (81308496).

Almost surely, 2^325081391 is an apocalyptic number.

325081391 is a deficient number, since it is larger than the sum of its proper divisors (152593).

325081391 is a wasteful number, since it uses less digits than its factorization.

325081391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152592.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 325081391 is about 18030.0136161901. The cubic root of 325081391 is about 687.5918227108.

The spelling of 325081391 in words is "three hundred twenty-five million, eighty-one thousand, three hundred ninety-one".