143021106 has 32 divisors (see below), whose sum is σ = 319494720. Its totient is φ = 47423232.

The previous prime is 143021093. The next prime is 143021117. The reversal of 143021106 is 601120341.

It is a happy number.

It is a super-2 number, since 2×143021106² = 40910073522926472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3561 + ... + 17283.

It is an arithmetic number, because the mean of its divisors is an integer number (9984210).

Almost surely, 2^143021106 is an apocalyptic number.

143021106 is an abundant number, since it is smaller than the sum of its proper divisors (176473614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143021106 is a wasteful number, since it uses less digits than its factorization.

143021106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927 (or 13921 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 143021106 is about 11959.1431967345. The cubic root of 143021106 is about 522.9578791967.

Adding to 143021106 its reverse (601120341), we get a palindrome (744141447).

The spelling of 143021106 in words is "one hundred forty-three million, twenty-one thousand, one hundred six".