675181321 has 8 divisors (see below), whose sum is σ = 719715200. Its totient is φ = 631547280.

The previous prime is 675181319. The next prime is 675181349. The reversal of 675181321 is 123181576.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 675181321 - 2¹ = 675181319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675181121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223410 + ... + 226411.

It is an arithmetic number, because the mean of its divisors is an integer number (89964400).

Almost surely, 2^675181321 is an apocalyptic number.

It is an amenable number.

675181321 is a deficient number, since it is larger than the sum of its proper divisors (44533879).

675181321 is a wasteful number, since it uses less digits than its factorization.

675181321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449919.

The product of its digits is 10080, while the sum is 34.

The square root of 675181321 is about 25984.2514034944. The cubic root of 675181321 is about 877.2838604793.

The spelling of 675181321 in words is "six hundred seventy-five million, one hundred eighty-one thousand, three hundred twenty-one".