144403552893531 has 12 divisors (see below), whose sum is σ = 201273257091368. Its totient is φ = 92083425032544.

The previous prime is 144403552893511. The next prime is 144403552893539. The reversal of 144403552893531 is 135398255304441.

It is a happy number.

It is not a de Polignac number, because 144403552893531 - 2¹⁴ = 144403552877147 is a prime.

It is a super-2 number, since 2×144403552893531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144403552893539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45495761770 + ... + 45495764943.

Almost surely, 2^{144403552893531} is an apocalyptic number.

144403552893531 is a deficient number, since it is larger than the sum of its proper divisors (56869704197837).

144403552893531 is an equidigital number, since it uses as much as digits as its factorization.

144403552893531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90991526762 (or 90991526739 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 57.

The spelling of 144403552893531 in words is "one hundred forty-four trillion, four hundred three billion, five hundred fifty-two million, eight hundred ninety-three thousand, five hundred thirty-one".