144065505 has 16 divisors (see below), whose sum is σ = 242637120. Its totient is φ = 72790848.

The previous prime is 144065473. The next prime is 144065521. The reversal of 144065505 is 505560441.

It is not a de Polignac number, because 144065505 - 2⁵ = 144065473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252462 + ... + 253031.

It is an arithmetic number, because the mean of its divisors is an integer number (15164820).

Almost surely, 2^144065505 is an apocalyptic number.

144065505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144065505 is a deficient number, since it is larger than the sum of its proper divisors (98571615).

144065505 is a wasteful number, since it uses less digits than its factorization.

144065505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505520.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 144065505 is about 12002.7290646752. The cubic root of 144065505 is about 524.2277444162.

The spelling of 144065505 in words is "one hundred forty-four million, sixty-five thousand, five hundred five".