145843 has 8 divisors (see below), whose sum is σ = 161568. Its totient is φ = 130944.

The previous prime is 145829. The next prime is 145861. The reversal of 145843 is 348541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145843 - 2¹⁷ = 14771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 577.

It is an arithmetic number, because the mean of its divisors is an integer number (20196).

2¹⁴⁵⁸⁴³ is an apocalyptic number.

145843 is a deficient number, since it is larger than the sum of its proper divisors (15725).

145843 is a wasteful number, since it uses less digits than its factorization.

145843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 1920, while the sum is 25.

The square root of 145843 is about 381.8939643409. The cubic root of 145843 is about 52.6374929670.

The spelling of 145843 in words is "one hundred forty-five thousand, eight hundred forty-three".