144322020223397 has 4 divisors (see below), whose sum is σ = 144322047216876. Its totient is φ = 144321993229920.

The previous prime is 144322020223349. The next prime is 144322020223441. The reversal of 144322020223397 is 793322020223441.

144322020223397 is digitally balanced in base 2, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 1488902682436 + 142833117540961 = 1220206^2 + 11951281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144322020223397 is a prime.

It is a super-2 number, since 2×144322020223397² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144322020223097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478758 + ... + 17169399.

It is an arithmetic number, because the mean of its divisors is an integer number (36080511804219).

Almost surely, 2^{144322020223397} is an apocalyptic number.

It is an amenable number.

144322020223397 is a deficient number, since it is larger than the sum of its proper divisors (26993479).

144322020223397 is an equidigital number, since it uses as much as digits as its factorization.

144322020223397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26993478.

The product of its (nonzero) digits is 870912, while the sum is 44.

Adding to 144322020223397 its sum of digits (44), we get a palindrome (144322020223441).

The spelling of 144322020223397 in words is "one hundred forty-four trillion, three hundred twenty-two billion, twenty million, two hundred twenty-three thousand, three hundred ninety-seven".