143227645 has 8 divisors (see below), whose sum is σ = 187498080. Its totient is φ = 104165520.

The previous prime is 143227639. The next prime is 143227649. The reversal of 143227645 is 546722341.

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

It is not a de Polignac number, because 143227645 - 2⁷ = 143227517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143227645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143227649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302015 + ... + 1302124.

It is an arithmetic number, because the mean of its divisors is an integer number (23437260).

Almost surely, 2^143227645 is an apocalyptic number.

It is an amenable number.

143227645 is a deficient number, since it is larger than the sum of its proper divisors (44270435).

143227645 is a wasteful number, since it uses less digits than its factorization.

143227645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604155.

The product of its digits is 40320, while the sum is 34.

The square root of 143227645 is about 11967.7752736254. The cubic root of 143227645 is about 523.2094953126.

Adding to 143227645 its reverse (546722341), we get a palindrome (689949986).

The spelling of 143227645 in words is "one hundred forty-three million, two hundred twenty-seven thousand, six hundred forty-five".