144131565 has 16 divisors (see below), whose sum is σ = 233771328. Its totient is φ = 75816576.

The previous prime is 144131557. The next prime is 144131569. The reversal of 144131565 is 565131441.

It is a happy number.

It is not a de Polignac number, because 144131565 - 2³ = 144131557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144131569) 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, 64719 + ... + 66908.

It is an arithmetic number, because the mean of its divisors is an integer number (14610708).

Almost surely, 2^144131565 is an apocalyptic number.

144131565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144131565 is a deficient number, since it is larger than the sum of its proper divisors (89639763).

144131565 is a wasteful number, since it uses less digits than its factorization.

144131565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131708.

The product of its digits is 7200, while the sum is 30.

The square root of 144131565 is about 12005.4806234486. The cubic root of 144131565 is about 524.3078588821.

The spelling of 144131565 in words is "one hundred forty-four million, one hundred thirty-one thousand, five hundred sixty-five".