321140325 has 48 divisors (see below), whose sum is σ = 585337536. Its totient is φ = 154060800.

The previous prime is 321140317. The next prime is 321140327. The reversal of 321140325 is 523041123.

It is not a de Polignac number, because 321140325 - 2³ = 321140317 is a prime.

It is a super-2 number, since 2×321140325² = 206262216682211250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321140327) 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 47 ways as a sum of consecutive naturals, for example, 78019 + ... + 82031.

It is an arithmetic number, because the mean of its divisors is an integer number (12194532).

Almost surely, 2^321140325 is an apocalyptic number.

It is an amenable number.

321140325 is a deficient number, since it is larger than the sum of its proper divisors (264197211).

321140325 is a wasteful number, since it uses less digits than its factorization.

321140325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 321140325 is about 17920.3885281542. The cubic root of 321140325 is about 684.8018856273.

Adding to 321140325 its reverse (523041123), we get a palindrome (844181448).

The spelling of 321140325 in words is "three hundred twenty-one million, one hundred forty thousand, three hundred twenty-five".