145867843 has 4 divisors (see below), whose sum is σ = 159128568. Its totient is φ = 132607120.

The previous prime is 145867831. The next prime is 145867849. The reversal of 145867843 is 348768541.

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 145867843 - 2⁵ = 145867811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145867793 and 145867802.

It is not an unprimeable number, because it can be changed into a prime (145867849) 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, 6630346 + ... + 6630367.

It is an arithmetic number, because the mean of its divisors is an integer number (39782142).

Almost surely, 2^145867843 is an apocalyptic number.

145867843 is a deficient number, since it is larger than the sum of its proper divisors (13260725).

145867843 is a wasteful number, since it uses less digits than its factorization.

145867843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13260724.

The product of its digits is 645120, while the sum is 46.

The square root of 145867843 is about 12077.5760399179. The cubic root of 145867843 is about 526.4048156662.

The spelling of 145867843 in words is "one hundred forty-five million, eight hundred sixty-seven thousand, eight hundred forty-three".