144497405 has 8 divisors (see below), whose sum is σ = 186735192. Its totient is φ = 106705728.

The previous prime is 144497387. The next prime is 144497443. The reversal of 144497405 is 504794441.

It can be written as a sum of positive squares in 4 ways, for example, as 1909924 + 142587481 = 1382^2 + 11941^2 .

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 144497405 - 2⁶ = 144497341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111454 + ... + 1111583.

It is an arithmetic number, because the mean of its divisors is an integer number (23341899).

Almost surely, 2^144497405 is an apocalyptic number.

It is an amenable number.

144497405 is a deficient number, since it is larger than the sum of its proper divisors (42237787).

144497405 is a wasteful number, since it uses less digits than its factorization.

144497405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223055.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 144497405 is about 12020.7073419163. The cubic root of 144497405 is about 524.7510898677.

The spelling of 144497405 in words is "one hundred forty-four million, four hundred ninety-seven thousand, four hundred five".