144862738 has 4 divisors (see below), whose sum is σ = 217294110. Its totient is φ = 72431368.

The previous prime is 144862709. The next prime is 144862811. The reversal of 144862738 is 837268441.

144862738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837268441 = 223 ⋅3754567.

It can be written as a sum of positive squares in only one way, i.e., 136118889 + 8743849 = 11667^2 + 2957^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144862694 and 144862703.

It is an unprimeable number.

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, 36215683 + ... + 36215686.

Almost surely, 2^144862738 is an apocalyptic number.

144862738 is a deficient number, since it is larger than the sum of its proper divisors (72431372).

144862738 is an equidigital number, since it uses as much as digits as its factorization.

144862738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72431371.

The product of its digits is 258048, while the sum is 43.

The square root of 144862738 is about 12035.8937349912. The cubic root of 144862738 is about 525.1929606646.

The spelling of 144862738 in words is "one hundred forty-four million, eight hundred sixty-two thousand, seven hundred thirty-eight".