321149 has 4 divisors (see below), whose sum is σ = 335136. Its totient is φ = 307164.

The previous prime is 321143. The next prime is 321163. The reversal of 321149 is 941123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321149 - 2¹⁶ = 255613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321143) 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, 6959 + ... + 7004.

It is an arithmetic number, because the mean of its divisors is an integer number (83784).

2³²¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

321149 is a deficient number, since it is larger than the sum of its proper divisors (13987).

321149 is a wasteful number, since it uses less digits than its factorization.

321149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13986.

The product of its digits is 216, while the sum is 20.

The square root of 321149 is about 566.7000970531. The cubic root of 321149 is about 68.4808051782.

It can be divided in two parts, 32114 and 9, that added together give a palindrome (32123).

The spelling of 321149 in words is "three hundred twenty-one thousand, one hundred forty-nine".