143920945636 has 24 divisors (see below), whose sum is σ = 271932930360. Its totient is φ = 66254284032.

The previous prime is 143920945621. The next prime is 143920945639. The reversal of 143920945636 is 636549029341.

It can be written as a sum of positive squares in 4 ways, for example, as 37283236 + 143883662400 = 6106^2 + 379320^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (143920945639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3537241 + ... + 3577696.

It is an arithmetic number, because the mean of its divisors is an integer number (11330538765).

Almost surely, 2^143920945636 is an apocalyptic number.

It is an amenable number.

143920945636 is a deficient number, since it is larger than the sum of its proper divisors (128011984724).

143920945636 is a wasteful number, since it uses less digits than its factorization.

143920945636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7115343 (or 7115341 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 143920945636 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred forty-five thousand, six hundred thirty-six".