144018939 has 8 divisors (see below), whose sum is σ = 200374272. Its totient is φ = 91838120.

The previous prime is 144018929. The next prime is 144018943. The reversal of 144018939 is 939810441.

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

It is a cyclic number.

It is not a de Polignac number, because 144018939 - 2⁴ = 144018923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144018897 and 144018906.

It is not an unprimeable number, because it can be changed into a prime (144018929) 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, 1043547 + ... + 1043684.

It is an arithmetic number, because the mean of its divisors is an integer number (25046784).

Almost surely, 2^144018939 is an apocalyptic number.

144018939 is a deficient number, since it is larger than the sum of its proper divisors (56355333).

144018939 is a wasteful number, since it uses less digits than its factorization.

144018939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087257.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 144018939 is about 12000.7890990551. The cubic root of 144018939 is about 524.1712566406.

The spelling of 144018939 in words is "one hundred forty-four million, eighteen thousand, nine hundred thirty-nine".