144618538 has 16 divisors (see below), whose sum is σ = 229356000. Its totient is φ = 68200272.

The previous prime is 144618479. The next prime is 144618547. The reversal of 144618538 is 835816441.

It is a self number, because there is not a number n which added to its sum of digits gives 144618538.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (14334750).

Almost surely, 2^144618538 is an apocalyptic number.

144618538 is a deficient number, since it is larger than the sum of its proper divisors (84737462).

144618538 is a wasteful number, since it uses less digits than its factorization.

144618538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16869.

The product of its digits is 92160, while the sum is 40.

The square root of 144618538 is about 12025.7448002192. The cubic root of 144618538 is about 524.8976828574.

The spelling of 144618538 in words is "one hundred forty-four million, six hundred eighteen thousand, five hundred thirty-eight".