144205031 has 4 divisors (see below), whose sum is σ = 145173000. Its totient is φ = 143237064.

The previous prime is 144204937. The next prime is 144205043. The reversal of 144205031 is 130502441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144205031 is a prime.

It is a super-2 number, since 2×144205031² = 41590181931421922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144204994 and 144205012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144205051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 483761 + ... + 484058.

It is an arithmetic number, because the mean of its divisors is an integer number (36293250).

Almost surely, 2^144205031 is an apocalyptic number.

144205031 is a deficient number, since it is larger than the sum of its proper divisors (967969).

144205031 is an equidigital number, since it uses as much as digits as its factorization.

144205031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967968.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 144205031 is about 12008.5399195739. The cubic root of 144205031 is about 524.3969262525.

Adding to 144205031 its reverse (130502441), we get a palindrome (274707472).

The spelling of 144205031 in words is "one hundred forty-four million, two hundred five thousand, thirty-one".