144293649 has 8 divisors (see below), whose sum is σ = 192466272. Its totient is φ = 96158400.

The previous prime is 144293629. The next prime is 144293659. The reversal of 144293649 is 946392441.

144293649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 144293649 - 2¹⁵ = 144260881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144293649.

It is not an unprimeable number, because it can be changed into a prime (144293629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449 + ... + 17049.

It is an arithmetic number, because the mean of its divisors is an integer number (24058284).

Almost surely, 2^144293649 is an apocalyptic number.

It is an amenable number.

144293649 is a deficient number, since it is larger than the sum of its proper divisors (48172623).

144293649 is a wasteful number, since it uses less digits than its factorization.

144293649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18687.

The product of its digits is 186624, while the sum is 42.

The square root of 144293649 is about 12012.2291436685. The cubic root of 144293649 is about 524.5043230854.

The spelling of 144293649 in words is "one hundred forty-four million, two hundred ninety-three thousand, six hundred forty-nine".