144338687 has 16 divisors (see below), whose sum is σ = 162712800. Its totient is φ = 127226880.

The previous prime is 144338671. The next prime is 144338693. The reversal of 144338687 is 786833441.

It is a cyclic number.

It is not a de Polignac number, because 144338687 - 2⁴ = 144338671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144338617) 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, 26237 + ... + 31257.

It is an arithmetic number, because the mean of its divisors is an integer number (10169550).

Almost surely, 2^144338687 is an apocalyptic number.

144338687 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

144338687 is a deficient number, since it is larger than the sum of its proper divisors (18374113).

144338687 is a wasteful number, since it uses less digits than its factorization.

144338687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146.

The product of its digits is 387072, while the sum is 44.

The square root of 144338687 is about 12014.1036702702. The cubic root of 144338687 is about 524.5588881304.

The spelling of 144338687 in words is "one hundred forty-four million, three hundred thirty-eight thousand, six hundred eighty-seven".