145789844 has 12 divisors (see below), whose sum is σ = 263930100. Its totient is φ = 70381248.

The previous prime is 145789843. The next prime is 145789871. The reversal of 145789844 is 448987541.

145789844 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 95804944 = 7070^2 + 9788^2 .

It is a super-2 number, since 2×145789844² = 42509357227088672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145789792 and 145789801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145789843) 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, 628289 + ... + 628520.

It is an arithmetic number, because the mean of its divisors is an integer number (21994175).

Almost surely, 2^145789844 is an apocalyptic number.

It is an amenable number.

145789844 is a deficient number, since it is larger than the sum of its proper divisors (118140256).

145789844 is a wasteful number, since it uses less digits than its factorization.

145789844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256842 (or 1256840 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 50.

The square root of 145789844 is about 12074.3465247607. The cubic root of 145789844 is about 526.3109718850.

The spelling of 145789844 in words is "one hundred forty-five million, seven hundred eighty-nine thousand, eight hundred forty-four".