144423513 has 48 divisors (see below), whose sum is σ = 239393280. Its totient is φ = 85924800.

The previous prime is 144423493. The next prime is 144423523. The reversal of 144423513 is 315324441.

It is a happy number.

144423513 is a `hidden beast` number, since 144 + 4 + 2 + 3 + 513 = 666.

It is not a de Polignac number, because 144423513 - 2¹⁰ = 144422489 is a prime.

It is a super-2 number, since 2×144423513² = 41716302214522338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (144423523) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140943 + ... + 141963.

It is an arithmetic number, because the mean of its divisors is an integer number (4987360).

Almost surely, 2^144423513 is an apocalyptic number.

144423513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144423513 is a deficient number, since it is larger than the sum of its proper divisors (94969767).

144423513 is a wasteful number, since it uses less digits than its factorization.

144423513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087 (or 1068 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 144423513 is about 12017.6334192719. The cubic root of 144423513 is about 524.6616268565.

Adding to 144423513 its reverse (315324441), we get a palindrome (459747954).

It can be divided in two parts, 14442 and 3513, that added together give a triangular number (17955 = T₁₈₉).

The spelling of 144423513 in words is "one hundred forty-four million, four hundred twenty-three thousand, five hundred thirteen".