323140447 has 12 divisors (see below), whose sum is σ = 376193160. Its totient is φ = 276760176.

The previous prime is 323140427. The next prime is 323140457. The reversal of 323140447 is 744041323.

It is not a de Polignac number, because 323140447 - 2⁷ = 323140319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323140427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109629 + ... + 112537.

It is an arithmetic number, because the mean of its divisors is an integer number (31349430).

Almost surely, 2^323140447 is an apocalyptic number.

323140447 is a deficient number, since it is larger than the sum of its proper divisors (53052713).

323140447 is a wasteful number, since it uses less digits than its factorization.

323140447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190 (or 5183 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 323140447 is about 17976.1076710171. The cubic root of 323140447 is about 686.2206356801.

The spelling of 323140447 in words is "three hundred twenty-three million, one hundred forty thousand, four hundred forty-seven".