144542387 has 16 divisors (see below), whose sum is σ = 163240704. Its totient is φ = 126828000.

The previous prime is 144542371. The next prime is 144542399. The reversal of 144542387 is 783245441.

144542387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 144542387 - 2⁴ = 144542371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144542387.

It is not an unprimeable number, because it can be changed into a prime (144542317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51962 + ... + 54672.

It is an arithmetic number, because the mean of its divisors is an integer number (10202544).

Almost surely, 2^144542387 is an apocalyptic number.

144542387 is a deficient number, since it is larger than the sum of its proper divisors (18698317).

144542387 is a wasteful number, since it uses less digits than its factorization.

144542387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890.

The product of its digits is 107520, while the sum is 38.

The square root of 144542387 is about 12022.5782176703. The cubic root of 144542387 is about 524.8055358387.

The spelling of 144542387 in words is "one hundred forty-four million, five hundred forty-two thousand, three hundred eighty-seven".