146243443 has 4 divisors (see below), whose sum is σ = 146327248. Its totient is φ = 146159640.

The previous prime is 146243423. The next prime is 146243501. The reversal of 146243443 is 344342641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344342641 = 41 ⋅8398601.

It is a cyclic number.

It is not a de Polignac number, because 146243443 - 2⁵ = 146243411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146243423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39228 + ... + 42793.

It is an arithmetic number, because the mean of its divisors is an integer number (36581812).

Almost surely, 2^146243443 is an apocalyptic number.

146243443 is a deficient number, since it is larger than the sum of its proper divisors (83805).

146243443 is an equidigital number, since it uses as much as digits as its factorization.

146243443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83804.

The product of its digits is 27648, while the sum is 31.

The square root of 146243443 is about 12093.1155208242. The cubic root of 146243443 is about 526.8562475554.

The spelling of 146243443 in words is "one hundred forty-six million, two hundred forty-three thousand, four hundred forty-three".