145143422444 has 6 divisors (see below), whose sum is σ = 254000989284. Its totient is φ = 72571711220.

The previous prime is 145143422407. The next prime is 145143422483. The reversal of 145143422444 is 444224341541.

It is a super-2 number, since 2×145143422444² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145143422398 and 145143422407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18142927802 + ... + 18142927809.

It is an arithmetic number, because the mean of its divisors is an integer number (42333498214).

Almost surely, 2^145143422444 is an apocalyptic number.

It is an amenable number.

145143422444 is a deficient number, since it is larger than the sum of its proper divisors (108857566840).

145143422444 is a wasteful number, since it uses less digits than its factorization.

145143422444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36285855615 (or 36285855613 counting only the distinct ones).

The product of its digits is 245760, while the sum is 38.

Adding to 145143422444 its reverse (444224341541), we get a palindrome (589367763985).

The spelling of 145143422444 in words is "one hundred forty-five billion, one hundred forty-three million, four hundred twenty-two thousand, four hundred forty-four".