144015404 has 12 divisors (see below), whose sum is σ = 271413744. Its totient is φ = 66468624.

The previous prime is 144015373. The next prime is 144015409. The reversal of 144015404 is 404510441.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 144015404.

It is not an unprimeable number, because it can be changed into a prime (144015409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1384712 + ... + 1384815.

It is an arithmetic number, because the mean of its divisors is an integer number (22617812).

Almost surely, 2^144015404 is an apocalyptic number.

It is an amenable number.

144015404 is a deficient number, since it is larger than the sum of its proper divisors (127398340).

144015404 is a wasteful number, since it uses less digits than its factorization.

144015404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769544 (or 2769542 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 144015404 is about 12000.6418161697. The cubic root of 144015404 is about 524.1669679441.

Adding to 144015404 its reverse (404510441), we get a palindrome (548525845).

The spelling of 144015404 in words is "one hundred forty-four million, fifteen thousand, four hundred four".