144909022 has 4 divisors (see below), whose sum is σ = 217363536. Its totient is φ = 72454510.

The previous prime is 144909013. The next prime is 144909031. The reversal of 144909022 is 220909441.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (144909013) and next prime (144909031).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 36227254 + ... + 36227257.

It is an arithmetic number, because the mean of its divisors is an integer number (54340884).

Almost surely, 2^144909022 is an apocalyptic number.

144909022 is a deficient number, since it is larger than the sum of its proper divisors (72454514).

144909022 is an equidigital number, since it uses as much as digits as its factorization.

144909022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72454513.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 144909022 is about 12037.8163302154. The cubic root of 144909022 is about 525.2488881883.

The spelling of 144909022 in words is "one hundred forty-four million, nine hundred nine thousand, twenty-two".