144594332018 has 4 divisors (see below), whose sum is σ = 216891498030. Its totient is φ = 72297166008.

The previous prime is 144594331967. The next prime is 144594332023. The reversal of 144594332018 is 810233495441.

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

It can be written as a sum of positive squares in only one way, i.e., 91885978129 + 52708353889 = 303127^2 + 229583^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144594332018.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36148583003 + ... + 36148583006.

Almost surely, 2^144594332018 is an apocalyptic number.

144594332018 is a deficient number, since it is larger than the sum of its proper divisors (72297166012).

144594332018 is an equidigital number, since it uses as much as digits as its factorization.

144594332018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72297166011.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 144594332018 in words is "one hundred forty-four billion, five hundred ninety-four million, three hundred thirty-two thousand, eighteen".