143138831650 has 12 divisors (see below), whose sum is σ = 266238226962. Its totient is φ = 57255532640.

The previous prime is 143138831639. The next prime is 143138831653. The reversal of 143138831650 is 56138831341.

143138831650 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 134430022609 + 8708809041 = 366647^2 + 93321^2 .

It is a super-2 number, since 2×143138831650² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143138831597 and 143138831606.

It is not an unprimeable number, because it can be changed into a prime (143138831653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1431388267 + ... + 1431388366.

Almost surely, 2^143138831650 is an apocalyptic number.

143138831650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143138831650 is a deficient number, since it is larger than the sum of its proper divisors (123099395312).

143138831650 is a wasteful number, since it uses less digits than its factorization.

143138831650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862776645 (or 2862776640 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 143138831650 in words is "one hundred forty-three billion, one hundred thirty-eight million, eight hundred thirty-one thousand, six hundred fifty".