145844144 has 10 divisors (see below), whose sum is σ = 282573060. Its totient is φ = 72922064.

The previous prime is 145844137. The next prime is 145844147. The reversal of 145844144 is 441448541.

It is not an unprimeable number, because it can be changed into a prime (145844147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4557614 + ... + 4557645.

It is an arithmetic number, because the mean of its divisors is an integer number (28257306).

Almost surely, 2^145844144 is an apocalyptic number.

It is an amenable number.

145844144 is a deficient number, since it is larger than the sum of its proper divisors (136728916).

145844144 is an equidigital number, since it uses as much as digits as its factorization.

145844144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115267 (or 9115261 counting only the distinct ones).

The product of its digits is 40960, while the sum is 35.

The square root of 145844144 is about 12076.5948843207. The cubic root of 145844144 is about 526.3763059706.

The spelling of 145844144 in words is "one hundred forty-five million, eight hundred forty-four thousand, one hundred forty-four".