144785122 has 4 divisors (see below), whose sum is σ = 217177686. Its totient is φ = 72392560.

The previous prime is 144785099. The next prime is 144785129. The reversal of 144785122 is 221587441.

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

It can be written as a sum of positive squares in only one way, i.e., 139499721 + 5285401 = 11811^2 + 2299^2 .

It is not an unprimeable number, because it can be changed into a prime (144785129) 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 as a sum of consecutive naturals, namely, 36196279 + ... + 36196282.

Almost surely, 2^144785122 is an apocalyptic number.

144785122 is a deficient number, since it is larger than the sum of its proper divisors (72392564).

144785122 is an equidigital number, since it uses as much as digits as its factorization.

144785122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72392563.

The product of its digits is 17920, while the sum is 34.

The square root of 144785122 is about 12032.6689474946. The cubic root of 144785122 is about 525.0991462033.

It can be divided in two parts, 14478 and 5122, that added together give a square (19600 = 140²).

The spelling of 144785122 in words is "one hundred forty-four million, seven hundred eighty-five thousand, one hundred twenty-two".