145943 has 4 divisors (see below), whose sum is σ = 166800. Its totient is φ = 125088.

The previous prime is 145933. The next prime is 145949. The reversal of 145943 is 349541.

145943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349541 = 431 ⋅811.

It is a cyclic number.

It is not a de Polignac number, because 145943 - 2⁶ = 145879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145949) 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, 10418 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (41700).

2¹⁴⁵⁹⁴³ is an apocalyptic number.

145943 is a deficient number, since it is larger than the sum of its proper divisors (20857).

145943 is an equidigital number, since it uses as much as digits as its factorization.

145943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20856.

The product of its digits is 2160, while the sum is 26.

The square root of 145943 is about 382.0248683005. The cubic root of 145943 is about 52.6495208479.

The spelling of 145943 in words is "one hundred forty-five thousand, nine hundred forty-three".