143920549645 has 32 divisors (see below), whose sum is σ = 190451471616. Its totient is φ = 103949798400.

The previous prime is 143920549613. The next prime is 143920549651. The reversal of 143920549645 is 546945029341.

It is a happy number.

It is not a de Polignac number, because 143920549645 - 2⁵ = 143920549613 is a prime.

It is a super-3 number, since 3×143920549645³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143920549592 and 143920549601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98971 + ... + 545560.

It is an arithmetic number, because the mean of its divisors is an integer number (5951608488).

Almost surely, 2^143920549645 is an apocalyptic number.

It is an amenable number.

143920549645 is a deficient number, since it is larger than the sum of its proper divisors (46530921971).

143920549645 is a wasteful number, since it uses less digits than its factorization.

143920549645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644661.

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 143920549645 in words is "one hundred forty-three billion, nine hundred twenty million, five hundred forty-nine thousand, six hundred forty-five".