144922 has 4 divisors (see below), whose sum is σ = 217386. Its totient is φ = 72460.

The previous prime is 144917. The next prime is 144931. The reversal of 144922 is 229441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229441 = 479².

It can be written as a sum of positive squares in only one way, i.e., 77841 + 67081 = 279^2 + 259^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 144893 and 144902.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36229 + ... + 36232.

2¹⁴⁴⁹²² is an apocalyptic number.

144922 is a deficient number, since it is larger than the sum of its proper divisors (72464).

144922 is an equidigital number, since it uses as much as digits as its factorization.

144922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72463.

The product of its digits is 576, while the sum is 22.

The square root of 144922 is about 380.6862224983. The cubic root of 144922 is about 52.5264568087.

It can be divided in two parts, 1449 and 22, that multiplied together give a triangular number (31878 = T₂₅₂).

The spelling of 144922 in words is "one hundred forty-four thousand, nine hundred twenty-two".