144718426 has 4 divisors (see below), whose sum is σ = 217077642. Its totient is φ = 72359212.

The previous prime is 144718417. The next prime is 144718429. The reversal of 144718426 is 624817441.

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: 624817441 = 29 ⋅21545429.

It can be written as a sum of positive squares in only one way, i.e., 86211225 + 58507201 = 9285^2 + 7649^2 .

It is not an unprimeable number, because it can be changed into a prime (144718429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36179605 + ... + 36179608.

Almost surely, 2^144718426 is an apocalyptic number.

144718426 is a deficient number, since it is larger than the sum of its proper divisors (72359216).

144718426 is an equidigital number, since it uses as much as digits as its factorization.

144718426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72359215.

The product of its digits is 43008, while the sum is 37.

The square root of 144718426 is about 12029.8971732929. The cubic root of 144718426 is about 525.0185039585.

The spelling of 144718426 in words is "one hundred forty-four million, seven hundred eighteen thousand, four hundred twenty-six".