143613421645 has 32 divisors (see below), whose sum is σ = 177346920960. Its totient is φ = 111582481920.

The previous prime is 143613421631. The next prime is 143613421681. The reversal of 143613421645 is 546124316341.

It is not a de Polignac number, because 143613421645 - 2⁷ = 143613421517 is a prime.

It is a super-3 number, since 3×143613421645³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143613421598 and 143613421607.

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, 29372361 + ... + 29377249.

It is an arithmetic number, because the mean of its divisors is an integer number (5542091280).

Almost surely, 2^143613421645 is an apocalyptic number.

It is an amenable number.

143613421645 is a deficient number, since it is larger than the sum of its proper divisors (33733499315).

143613421645 is a wasteful number, since it uses less digits than its factorization.

143613421645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685.

The product of its digits is 207360, while the sum is 40.

Adding to 143613421645 its reverse (546124316341), we get a palindrome (689737737986).

The spelling of 143613421645 in words is "one hundred forty-three billion, six hundred thirteen million, four hundred twenty-one thousand, six hundred forty-five".