145859843 has 4 divisors (see below), whose sum is σ = 145903248. Its totient is φ = 145816440.

The previous prime is 145859807. The next prime is 145859849. The reversal of 145859843 is 348958541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145859843 - 2¹⁰ = 145858819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145859849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16196 + ... + 23537.

It is an arithmetic number, because the mean of its divisors is an integer number (36475812).

Almost surely, 2^145859843 is an apocalyptic number.

145859843 is a deficient number, since it is larger than the sum of its proper divisors (43405).

145859843 is an equidigital number, since it uses as much as digits as its factorization.

145859843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43404.

The product of its digits is 691200, while the sum is 47.

The square root of 145859843 is about 12077.2448430923. The cubic root of 145859843 is about 526.3951920795.

The spelling of 145859843 in words is "one hundred forty-five million, eight hundred fifty-nine thousand, eight hundred forty-three".