144240622 has 4 divisors (see below), whose sum is σ = 216360936. Its totient is φ = 72120310.

The previous prime is 144240611. The next prime is 144240623. The reversal of 144240622 is 226042441.

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: 226042441 = 853 ⋅264997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144240623) by changing a digit.

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 as a sum of consecutive naturals, namely, 36060154 + ... + 36060157.

It is an arithmetic number, because the mean of its divisors is an integer number (54090234).

Almost surely, 2^144240622 is an apocalyptic number.

144240622 is a deficient number, since it is larger than the sum of its proper divisors (72120314).

144240622 is an equidigital number, since it uses as much as digits as its factorization.

144240622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72120313.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 144240622 is about 12010.0217318704. The cubic root of 144240622 is about 524.4400645435.

The spelling of 144240622 in words is "one hundred forty-four million, two hundred forty thousand, six hundred twenty-two".