143920945634 has 8 divisors (see below), whose sum is σ = 215887944108. Its totient is φ = 71958297600.

The previous prime is 143920945621. The next prime is 143920945639. The reversal of 143920945634 is 436549029341.

It can be written as a sum of positive squares in 2 ways, for example, as 98699647225 + 45221298409 = 314165^2 + 212653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 1003607 + ... + 1138010.

Almost surely, 2^143920945634 is an apocalyptic number.

143920945634 is a deficient number, since it is larger than the sum of its proper divisors (71966998474).

143920945634 is a wasteful number, since it uses less digits than its factorization.

143920945634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175220.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 143920945634 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred forty-five thousand, six hundred thirty-four".