144067689 has 12 divisors (see below), whose sum is σ = 210044016. Its totient is φ = 95146872.

The previous prime is 144067687. The next prime is 144067691. The reversal of 144067689 is 986760441.

It is an interprime number because it is at equal distance from previous prime (144067687) and next prime (144067691).

It is not a de Polignac number, because 144067689 - 2¹ = 144067687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144067681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73839 + ... + 75764.

It is an arithmetic number, because the mean of its divisors is an integer number (17503668).

Almost surely, 2^144067689 is an apocalyptic number.

It is an amenable number.

144067689 is a deficient number, since it is larger than the sum of its proper divisors (65976327).

144067689 is a wasteful number, since it uses less digits than its factorization.

144067689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149716 (or 149713 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 144067689 is about 12002.8200436397. The cubic root of 144067689 is about 524.2303934602.

The spelling of 144067689 in words is "one hundred forty-four million, sixty-seven thousand, six hundred eighty-nine".