144431013 has 8 divisors (see below), whose sum is σ = 192701376. Its totient is φ = 96224000.

The previous prime is 144430999. The next prime is 144431041. The reversal of 144431013 is 310134441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144431013 - 2⁸ = 144430757 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 (144431113) 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, 10233 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (24087672).

Almost surely, 2^144431013 is an apocalyptic number.

It is an amenable number.

144431013 is a deficient number, since it is larger than the sum of its proper divisors (48270363).

144431013 is a wasteful number, since it uses less digits than its factorization.

144431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31675.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 144431013 is about 12017.9454566910. The cubic root of 144431013 is about 524.6707086973.

Adding to 144431013 its reverse (310134441), we get a palindrome (454565454).

The spelling of 144431013 in words is "one hundred forty-four million, four hundred thirty-one thousand, thirteen".