144222002 has 4 divisors (see below), whose sum is σ = 216333006. Its totient is φ = 72111000.

The previous prime is 144221981. The next prime is 144222011. The reversal of 144222002 is 200222441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200222441 = 953 ⋅210097.

It can be written as a sum of positive squares in only one way, i.e., 135466321 + 8755681 = 11639^2 + 2959^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36055499 + ... + 36055502.

Almost surely, 2^144222002 is an apocalyptic number.

144222002 is a deficient number, since it is larger than the sum of its proper divisors (72111004).

144222002 is an equidigital number, since it uses as much as digits as its factorization.

144222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72111003.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 144222002 is about 12009.2465209105. The cubic root of 144222002 is about 524.4174969429.

Adding to 144222002 its reverse (200222441), we get a palindrome (344444443).

The spelling of 144222002 in words is "one hundred forty-four million, two hundred twenty-two thousand, two".