144400273 has 2 divisors, whose sum is σ = 144400274. Its totient is φ = 144400272.

The previous prime is 144400253. The next prime is 144400337. The reversal of 144400273 is 372004441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138697729 + 5702544 = 11777^2 + 2388^2 .

It is a cyclic number.

It is not a de Polignac number, because 144400273 - 2⁵ = 144400241 is a prime.

It is not a weakly prime, because it can be changed into another prime (144400253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72200136 + 72200137.

It is an arithmetic number, because the mean of its divisors is an integer number (72200137).

Almost surely, 2^144400273 is an apocalyptic number.

It is an amenable number.

144400273 is a deficient number, since it is larger than the sum of its proper divisors (1).

144400273 is an equidigital number, since it uses as much as digits as its factorization.

144400273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 144400273 is about 12016.6664678687. Note that the first 3 decimals coincide. The cubic root of 144400273 is about 524.6334832621.

The spelling of 144400273 in words is "one hundred forty-four million, four hundred thousand, two hundred seventy-three".