143949389922 has 90 divisors (see below), whose sum is σ = 349426039347. Its totient is φ = 44272803744.

The previous prime is 143949389897. The next prime is 143949389951. The reversal of 143949389922 is 229983949341.

143949389922 is a `hidden beast` number, since 1 + 4 + 39 + 493 + 8 + 99 + 22 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 4521083121 + 139428306801 = 67239^2 + 373401^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=268281.

It is a self number, because there is not a number n which added to its sum of digits gives 143949389922.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 62776608 + ... + 62778900.

Almost surely, 2^143949389922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143949389922

143949389922 is an abundant number, since it is smaller than the sum of its proper divisors (205476649425).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143949389922 is an frugal number, since it uses more digits than its factorization.

143949389922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626 (or 2311 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 63.

The spelling of 143949389922 in words is "one hundred forty-three billion, nine hundred forty-nine million, three hundred eighty-nine thousand, nine hundred twenty-two".