144914565 has 16 divisors (see below), whose sum is σ = 233081856. Its totient is φ = 76881600.

The previous prime is 144914557. The next prime is 144914591. The reversal of 144914565 is 565419441.

It is not a de Polignac number, because 144914565 - 2³ = 144914557 is a prime.

It is a super-2 number, since 2×144914565² = 42000462298278450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22426 + ... + 28155.

It is an arithmetic number, because the mean of its divisors is an integer number (14567616).

Almost surely, 2^144914565 is an apocalyptic number.

144914565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144914565 is a deficient number, since it is larger than the sum of its proper divisors (88167291).

144914565 is a wasteful number, since it uses less digits than its factorization.

144914565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50780.

The product of its digits is 86400, while the sum is 39.

The square root of 144914565 is about 12038.0465608005. The cubic root of 144914565 is about 525.2555853040.

The spelling of 144914565 in words is "one hundred forty-four million, nine hundred fourteen thousand, five hundred sixty-five".