143520422 has 8 divisors (see below), whose sum is σ = 219861216. Its totient is φ = 70233352.

The previous prime is 143520407. The next prime is 143520431. The reversal of 143520422 is 224025341.

It is a happy number.

143520422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×143520422² = 41196223062116168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 763313 + ... + 763500.

It is an arithmetic number, because the mean of its divisors is an integer number (27482652).

Almost surely, 2^143520422 is an apocalyptic number.

143520422 is a deficient number, since it is larger than the sum of its proper divisors (76340794).

143520422 is a wasteful number, since it uses less digits than its factorization.

143520422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526862.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 143520422 is about 11980.0009181970. Note that the first 3 decimals coincide. The cubic root of 143520422 is about 523.5657567233.

Adding to 143520422 its reverse (224025341), we get a palindrome (367545763).

The spelling of 143520422 in words is "one hundred forty-three million, five hundred twenty thousand, four hundred twenty-two".