148643 has 4 divisors (see below), whose sum is σ = 162168. Its totient is φ = 135120.

The previous prime is 148639. The next prime is 148663. The reversal of 148643 is 346841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346841 = 11 ⋅31531.

It is a cyclic number.

It is not a de Polignac number, because 148643 - 2² = 148639 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148633) 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, 6746 + ... + 6767.

It is an arithmetic number, because the mean of its divisors is an integer number (40542).

2¹⁴⁸⁶⁴³ is an apocalyptic number.

148643 is a deficient number, since it is larger than the sum of its proper divisors (13525).

148643 is a wasteful number, since it uses less digits than its factorization.

148643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13524.

The product of its digits is 2304, while the sum is 26.

The square root of 148643 is about 385.5424749622. The cubic root of 148643 is about 52.9722175501.

The spelling of 148643 in words is "one hundred forty-eight thousand, six hundred forty-three".