143401222 has 12 divisors (see below), whose sum is σ = 228500100. Its totient is φ = 67482656.

The previous prime is 143401207. The next prime is 143401241. The reversal of 143401222 is 222104341.

It is a self number, because there is not a number n which added to its sum of digits gives 143401222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123472 + ... + 124627.

It is an arithmetic number, because the mean of its divisors is an integer number (19041675).

Almost surely, 2^143401222 is an apocalyptic number.

143401222 is a deficient number, since it is larger than the sum of its proper divisors (85098878).

143401222 is a wasteful number, since it uses less digits than its factorization.

143401222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248135 (or 248118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143401222 is about 11975.0249269052. The cubic root of 143401222 is about 523.4207684745.

Adding to 143401222 its reverse (222104341), we get a palindrome (365505563).

The spelling of 143401222 in words is "one hundred forty-three million, four hundred one thousand, two hundred twenty-two".