143240222 has 8 divisors (see below), whose sum is σ = 222269400. Its totient is φ = 69150424.

The previous prime is 143240219. The next prime is 143240231. The reversal of 143240222 is 222042341.

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

It is a super-2 number, since 2×143240222² = 41035522397218568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143240194 and 143240203.

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, 1234772 + ... + 1234887.

It is an arithmetic number, because the mean of its divisors is an integer number (27783675).

Almost surely, 2^143240222 is an apocalyptic number.

143240222 is a deficient number, since it is larger than the sum of its proper divisors (79029178).

143240222 is a wasteful number, since it uses less digits than its factorization.

143240222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469690.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143240222 is about 11968.3007148049. The cubic root of 143240222 is about 523.2248094261.

Adding to 143240222 its reverse (222042341), we get a palindrome (365282563).

The spelling of 143240222 in words is "one hundred forty-three million, two hundred forty thousand, two hundred twenty-two".