143402222 has 16 divisors (see below), whose sum is σ = 220827840. Its totient is φ = 69818112.

The previous prime is 143402221. The next prime is 143402243. The reversal of 143402222 is 222204341.

It is a junction number, because it is equal to n+sod(n) for n = 143402194 and 143402203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143402221) 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, 5318 + ... + 17750.

It is an arithmetic number, because the mean of its divisors is an integer number (13801740).

Almost surely, 2^143402222 is an apocalyptic number.

143402222 is a deficient number, since it is larger than the sum of its proper divisors (77425618).

143402222 is a wasteful number, since it uses less digits than its factorization.

143402222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587.

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

The square root of 143402222 is about 11975.0666803989. The cubic root of 143402222 is about 523.4219851530.

Adding to 143402222 its reverse (222204341), we get a palindrome (365606563).

The spelling of 143402222 in words is "one hundred forty-three million, four hundred two thousand, two hundred twenty-two".