144415545 has 16 divisors (see below), whose sum is σ = 231415872. Its totient is φ = 76904640.

The previous prime is 144415519. The next prime is 144415549. The reversal of 144415545 is 545514441.

It is not a de Polignac number, because 144415545 - 2¹⁰ = 144414521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144415549) 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, 3399 + ... + 17331.

It is an arithmetic number, because the mean of its divisors is an integer number (14463492).

Almost surely, 2^144415545 is an apocalyptic number.

144415545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144415545 is a deficient number, since it is larger than the sum of its proper divisors (87000327).

144415545 is a wasteful number, since it uses less digits than its factorization.

144415545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632.

The product of its digits is 32000, while the sum is 33.

The square root of 144415545 is about 12017.3019018414. The cubic root of 144415545 is about 524.6519779643.

Adding to 144415545 its reverse (545514441), we get a palindrome (689929986).

The spelling of 144415545 in words is "one hundred forty-four million, four hundred fifteen thousand, five hundred forty-five".