144944775 has 24 divisors (see below), whose sum is σ = 266270160. Its totient is φ = 77303520.

The previous prime is 144944773. The next prime is 144944803. The reversal of 144944775 is 577449441.

144944775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144944775 - 2¹ = 144944773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 144944775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144944773) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106692 + ... + 108041.

It is an arithmetic number, because the mean of its divisors is an integer number (11094590).

Almost surely, 2^144944775 is an apocalyptic number.

144944775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144944775 is a deficient number, since it is larger than the sum of its proper divisors (121325385).

144944775 is a wasteful number, since it uses less digits than its factorization.

144944775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214752 (or 214741 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 144944775 is about 12039.3012671002. The cubic root of 144944775 is about 525.2920823686.

The spelling of 144944775 in words is "one hundred forty-four million, nine hundred forty-four thousand, seven hundred seventy-five".