148321 has 4 divisors (see below), whose sum is σ = 150192. Its totient is φ = 146452.

The previous prime is 148303. The next prime is 148331. The reversal of 148321 is 123841.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123841 = 59 ⋅2099.

It is a cyclic number.

It is not a de Polignac number, because 148321 - 2⁷ = 148193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811 + ... + 976.

It is an arithmetic number, because the mean of its divisors is an integer number (37548).

2¹⁴⁸³²¹ is an apocalyptic number.

It is an amenable number.

148321 is a deficient number, since it is larger than the sum of its proper divisors (1871).

148321 is an equidigital number, since it uses as much as digits as its factorization.

148321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870.

The product of its digits is 192, while the sum is 19.

The square root of 148321 is about 385.1246551443. The cubic root of 148321 is about 52.9339392915.

The spelling of 148321 in words is "one hundred forty-eight thousand, three hundred twenty-one".