144862990322 has 6 divisors (see below), whose sum is σ = 217295292879. Its totient is φ = 72431226030.

The previous prime is 144862990319. The next prime is 144862990343. The reversal of 144862990322 is 223099268441.

It can be written as a sum of positive squares in only one way, i.e., 72431495161 + 72431495161 = 269131^2 + 269131^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=269131.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 403697 + ... + 672827.

Almost surely, 2^144862990322 is an apocalyptic number.

144862990322 is a deficient number, since it is larger than the sum of its proper divisors (72432302557).

144862990322 is an frugal number, since it uses more digits than its factorization.

144862990322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538264 (or 269133 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

Multiplying 144862990322 by its sum of digits (50), we get a square (7243149516100 = 2691310²).

The spelling of 144862990322 in words is "one hundred forty-four billion, eight hundred sixty-two million, nine hundred ninety thousand, three hundred twenty-two".