144111493 has 8 divisors (see below), whose sum is σ = 145148696. Its totient is φ = 143078400.

The previous prime is 144111449. The next prime is 144111497. The reversal of 144111493 is 394111441.

It can be written as a sum of positive squares in 4 ways, for example, as 11009124 + 133102369 = 3318^2 + 11537^2 .

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 144111493 - 2¹³ = 144103301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144111497) 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, 103663 + ... + 105043.

It is an arithmetic number, because the mean of its divisors is an integer number (18143587).

Almost surely, 2^144111493 is an apocalyptic number.

It is an amenable number.

144111493 is a deficient number, since it is larger than the sum of its proper divisors (1037203).

144111493 is a wasteful number, since it uses less digits than its factorization.

144111493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055.

The product of its digits is 1728, while the sum is 28.

The square root of 144111493 is about 12004.6446428039. The cubic root of 144111493 is about 524.2835190925.

The spelling of 144111493 in words is "one hundred forty-four million, one hundred eleven thousand, four hundred ninety-three".