320149 has 2 divisors, whose sum is σ = 320150. Its totient is φ = 320148.

The previous prime is 320143. The next prime is 320153. The reversal of 320149 is 941023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 117649 = 450^2 + 343^2 .

It is an emirp because it is prime and its reverse (941023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320149 - 2³ = 320141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160074 + 160075.

It is an arithmetic number, because the mean of its divisors is an integer number (160075).

2³²⁰¹⁴⁹ is an apocalyptic number.

It is an amenable number.

320149 is a deficient number, since it is larger than the sum of its proper divisors (1).

320149 is an equidigital number, since it uses as much as digits as its factorization.

320149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 320149 is about 565.8171082603. The cubic root of 320149 is about 68.4096523205.

It can be divided in two parts, 32014 and 9, that added together give a palindrome (32023).

The spelling of 320149 in words is "three hundred twenty thousand, one hundred forty-nine".