325985731 has 2 divisors, whose sum is σ = 325985732. Its totient is φ = 325985730.

The previous prime is 325985713. The next prime is 325985743. The reversal of 325985731 is 137589523.

Together with previous prime (325985713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (137589523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325985731 - 2¹⁹ = 325461443 is a prime.

It is a super-2 number, since 2×325985731² = 212533393631208722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (325985791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162992865 + 162992866.

It is an arithmetic number, because the mean of its divisors is an integer number (162992866).

Almost surely, 2^325985731 is an apocalyptic number.

325985731 is a deficient number, since it is larger than the sum of its proper divisors (1).

325985731 is an equidigital number, since it uses as much as digits as its factorization.

325985731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 325985731 is about 18055.0749375349. The cubic root of 325985731 is about 688.2288335102.

The spelling of 325985731 in words is "three hundred twenty-five million, nine hundred eighty-five thousand, seven hundred thirty-one".