144443013 has 32 divisors (see below), whose sum is σ = 236113920. Its totient is φ = 77288640.

The previous prime is 144443009. The next prime is 144443021. The reversal of 144443013 is 310344441.

It is not a de Polignac number, because 144443013 - 2² = 144443009 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144443023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2548 + ... + 17186.

It is an arithmetic number, because the mean of its divisors is an integer number (7378560).

Almost surely, 2^144443013 is an apocalyptic number.

144443013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144443013 is a deficient number, since it is larger than the sum of its proper divisors (91670907).

144443013 is a wasteful number, since it uses less digits than its factorization.

144443013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 144443013 is about 12018.4446997105. Note that the first 3 decimals coincide. The cubic root of 144443013 is about 524.6852389888.

Adding to 144443013 its reverse (310344441), we get a palindrome (454787454).

The spelling of 144443013 in words is "one hundred forty-four million, four hundred forty-three thousand, thirteen".