144425522 has 4 divisors (see below), whose sum is σ = 216638286. Its totient is φ = 72212760.

The previous prime is 144425521. The next prime is 144425527. The reversal of 144425522 is 225524441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225524441 = 127 ⋅1775783.

It can be written as a sum of positive squares in only one way, i.e., 143256961 + 1168561 = 11969^2 + 1081^2 .

It is not an unprimeable number, because it can be changed into a prime (144425521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36106379 + ... + 36106382.

Almost surely, 2^144425522 is an apocalyptic number.

144425522 is a deficient number, since it is larger than the sum of its proper divisors (72212764).

144425522 is an equidigital number, since it uses as much as digits as its factorization.

144425522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72212763.

The product of its digits is 12800, while the sum is 29.

The square root of 144425522 is about 12017.7170044897. The cubic root of 144425522 is about 524.6640596097.

Adding to 144425522 its reverse (225524441), we get a palindrome (369949963).

The spelling of 144425522 in words is "one hundred forty-four million, four hundred twenty-five thousand, five hundred twenty-two".