144015454521 has 8 divisors (see below), whose sum is σ = 213356228960. Its totient is φ = 96010302996.

The previous prime is 144015454519. The next prime is 144015454543. The reversal of 144015454521 is 125454510441.

144015454521 is a `hidden beast` number, since 1 + 4 + 40 + 1 + 54 + 545 + 21 = 666.

It is not a de Polignac number, because 144015454521 - 2¹ = 144015454519 is a prime.

It is a super-2 number, since 2×144015454521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144015454621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2666952835 + ... + 2666952888.

It is an arithmetic number, because the mean of its divisors is an integer number (26669528620).

Almost surely, 2^144015454521 is an apocalyptic number.

It is an amenable number.

144015454521 is a deficient number, since it is larger than the sum of its proper divisors (69340774439).

144015454521 is an equidigital number, since it uses as much as digits as its factorization.

144015454521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5333905732 (or 5333905726 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 144015454521 its reverse (125454510441), we get a palindrome (269469964962).

The spelling of 144015454521 in words is "one hundred forty-four billion, fifteen million, four hundred fifty-four thousand, five hundred twenty-one".